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Contingencies And Commitments | 6 Months Ended
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Jun. 30, 2015
Contingencies And Commitments | 3:CONTINGENCIES AND COMMITMENTS CMS Energy and Consumers are involved in various matters that give rise to contingent liabilities. Depending on the specific issues, the resolution of these contingencies could negatively affect CMS Energy’s and Consumers’ liquidity, financial condition, and results of operations. In their disclosures of these matters, CMS Energy and Consumers provide an estimate of the possible loss or range of loss when such an estimate can be made. Disclosures that state that CMS Energy or Consumers cannot predict the outcome of a matter indicate that they are unable to estimate a possible loss or range of loss for the matter. CMS Energy Contingencies Gas Index Price Reporting Litigation: CMS Energy, along with CMS MST, CMS Field Services, Cantera Natural Gas, Inc., and Cantera Gas Company, have been named as defendants in five class action lawsuits arising as a result of alleged inaccurate natural gas price reporting to publications that report trade information. Allegations include manipulation of NYMEX natural gas futures and options prices, price-fixing conspiracies, restraint of trade, and artificial inflation of natural gas retail prices in Kansas, Missouri, and Wisconsin. Plaintiffs are making claims for the following: full consideration damages, treble damages, exemplary damages, costs, interest, and/or attorney fees. After removal to federal court, all of the cases were transferred to a single federal district court pursuant to the multidistrict litigation process. In 2010 and 2011, all claims against CMS Energy defendants were dismissed by the district court based on FERC preemption. Plaintiffs filed appeals in all of the cases. The issues on appeal were whether the district court erred in dismissing the cases based on FERC preemption and denying the plaintiffs’ motions for leave to amend their complaints to add a federal Sherman Act antitrust claim. The plaintiffs did not appeal the dismissal of CMS Energy as a defendant in these cases, but other CMS Energy entities remain as defendants. In 2013, the U.S. Court of Appeals for the Ninth Circuit reversed the district court decision and remanded the case to the district court judge for further proceedings. The appellate court found that FERC preemption does not apply under the facts of these cases. The appellate court affirmed the district court’s denial of leave to amend to add federal antitrust claims. The matter was appealed to the U.S. Supreme Court, which in April 2015 upheld the Ninth Circuit’s decision. The cases have been remanded back to the federal district court. These cases involve complex facts, a large number of similarly situated defendants with different factual positions, and multiple jurisdictions. Presently, any estimate of liability would be highly speculative; the amount of CMS Energy’s possible loss would be based on widely varying models previously untested in this context. If the outcome after appeals is unfavorable, these cases could negatively affect CMS Energy’s liquidity, financial condition, and results of operations. Bay Harbor: CMS Land retained environmental remediation obligations for the collection and treatment of leachate, a liquid consisting of water and other substances, at Bay Harbor after selling its interests in the development in 2002. Leachate is produced when water enters into cement kiln dust piles left over from former cement plant operations at the site. In 2012, CMS Land and the MDEQ finalized an agreement that established the final remedies and the future water quality criteria at the site. CMS Land has completed all construction necessary to implement the remedies required by the agreement and will continue to maintain and operate a system to discharge treated leachate into Little Traverse Bay under an NPDES permit issued in 2010. CMS Land is presently working with the MDEQ to renew this permit, which requires renewal every five years. Various claims have been brought against CMS Land or its affiliates, including CMS Energy, alleging environmental damage to property, loss of property value, insufficient disclosure of environmental matters, breach of agreement relating to access, or other matters. CMS Land and other parties have received a demand for payment from the EPA in the amount of $8 million, plus interest. The EPA is seeking recovery under CERCLA of response costs allegedly incurred at Bay Harbor. These costs exceed what was agreed to in a 2005 order between CMS Land and the EPA, and CMS Land has communicated to the EPA that it does not believe that this is a valid claim. In August 2014, the EPA indicated that it intends to pursue the claim. CMS Energy has recorded a cumulative charge related to Bay Harbor of $246 million, which includes accretion expense. At June 30, 2015, CMS Energy had a recorded liability of $60 million for its remaining obligations. CMS Energy calculated this liability based on discounted projected costs, using a discount rate of 4.34 percent and an inflation rate of one percent on annual operating and maintenance costs. The undiscounted amount of the remaining obligation is $77 million. CMS Energy expects to pay the following amounts for long-term liquid disposal and operating and maintenance costs in 2015 and in each of the next four years:
In Millions
| 2015 | 2016 | 2017 | 2018 | 2019 |
CMS Energy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term liquid disposal and operating and maintenance costs |  | $ | 7 |  | $ | 6 |  | $ | 5 |  | $ | 5 |  | $ | 5 |
CMS Energy’s estimate of response activity costs and the timing of expenditures could change if there are changes in circumstances or assumptions used in calculating the liability. Although a liability for its present estimate of remaining response activity costs has been recorded, CMS Energy cannot predict the ultimate financial impact or outcome of this matter. Equatorial Guinea Tax Claim: In 2002, CMS Energy sold its oil, gas, and methanol investments in Equatorial Guinea. The government of Equatorial Guinea claims that CMS Energy owes $142 million in taxes, plus significant penalties and interest, in connection with the sale and may proceed to formal arbitration. CMS Energy has concluded that the government’s tax claim is without merit. CMS Energy is vigorously contesting the claim but cannot predict the financial impact or outcome of this matter. It is possible that the outcome of this matter could negatively affect CMS Energy’s liquidity, financial condition, and results of operations. Consumers Electric Utility Contingencies Electric Environmental Matters: Consumers’ operations are subject to environmental laws and regulations. Historically, Consumers has generally been able to recover, in customer rates, the costs to operate its facilities in compliance with these laws and regulations. Cleanup and Solid Waste: Consumers expects to incur remediation and other response activity costs at a number of sites under NREPA. Consumers believes that these costs should be recoverable in rates, but cannot guarantee that outcome. Consumers estimates that its liability for NREPA sites for which it can estimate a range of loss will be between $5 million and $7 million. At June 30, 2015, Consumers had a recorded liability of $5 million, the minimum amount in the range of its estimated probable NREPA liability. Consumers is a potentially responsible party at a number of contaminated sites administered under CERCLA. CERCLA liability is joint and several. In 2010, Consumers received official notification from the EPA that identified Consumers as a potentially responsible party for cleanup of PCBs at the Kalamazoo River CERCLA site. The notification claimed that the EPA has reason to believe that Consumers disposed of PCBs and arranged for the disposal and treatment of PCB-containing materials at portions of the site. In 2011, Consumers received a follow‑up letter from the EPA requesting that Consumers agree to participate in a removal action plan along with several other companies for an area of lower Portage Creek, which is connected to the Kalamazoo River. All parties, including Consumers, that were asked to participate in the removal action plan declined to accept liability. Until further information is received from the EPA, Consumers is unable to estimate a range of potential liability for cleanup of the river. Based on its experience, Consumers estimates that its share of the total liability for known CERCLA sites will be between $3 million and $9 million. Various factors, including the number of potentially responsible parties involved with each site, affect Consumers’ share of the total liability. At June 30, 2015, Consumers had a recorded liability of $3 million for its share of the total liability at these sites, the minimum amount in the range of its estimated probable CERCLA liability. The timing of payments related to Consumers’ remediation and other response activities at its CERCLA and NREPA sites is uncertain. Consumers periodically reviews these cost estimates. Any significant change in the underlying assumptions, such as an increase in the number of sites, different remediation techniques, the nature and extent of contamination, and legal and regulatory requirements, could affect its estimates of NREPA and CERCLA liability. Ludington PCB: In 1998, during routine maintenance activities, Consumers identified PCB as a component in certain paint, grout, and sealant materials at Ludington. Consumers removed part of the PCB material and replaced it with non‑PCB material. Consumers has had several communications with the EPA regarding this matter. Consumers cannot predict the financial impact or outcome of this matter. CCRs: In April 2015, the EPA published a final rule regulating CCRs, such as coal ash, under the Resource Conservation and Recovery Act. The final rule adopts non‑hazardous minimum standards for beneficially reusing and disposing of CCRs. The rule establishes new minimum requirements for site location, groundwater monitoring, flood protection, storm water design, fugitive dust control, and public disclosure of information. The rule also sets out conditions under which CCR units would be forced to cease receiving CCR and non‑CCR waste and initiate closure based on the inability to achieve minimum safety standards, meet a location standard, or meet minimum groundwater standards. Consumers will accelerate a minor amount of its planned capital and cost of removal expenditures at its coal-fueled units to meet compliance deadlines, but does not expect any adverse changes to its environmental strategy, liquidity, financial condition, or results of operations as a result of the final rule. Consumers Gas Utility Contingencies Gas Environmental Matters: Consumers expects to incur remediation and other response activity costs at a number of sites under the NREPA. These sites include 23 former MGP facilities. Consumers operated the facilities on these sites for some part of their operating lives. For some of these sites, Consumers has no present ownership interest or may own only a portion of the original site. At June 30, 2015, Consumers had a recorded liability of $113 million for its remaining obligations for these sites. This amount represents the present value of long-term projected costs, using a discount rate of 2.57 percent and an inflation rate of 2.5 percent. The undiscounted amount of the remaining obligation is $128 million. Consumers expects to pay the following amounts for remediation and other response activity costs in 2015 and in each of the next four years:
In Millions
| 2015 | 2016 | 2017 | 2018 | 2019 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Remediation and other response activity costs |  | $ | 11 |  | $ | 12 |  | $ | 13 |  | $ | 11 |  | $ | 14 |
Consumers periodically reviews these cost estimates. Any significant change in the underlying assumptions, such as an increase in the number of sites, changes in remediation techniques, or legal and regulatory requirements, could affect Consumers’ estimates of annual response activity costs and the MGP liability. Pursuant to orders issued by the MPSC, Consumers defers its MGP-related remediation costs and recovers them from its customers over a ten-year period. At June 30, 2015, Consumers had a regulatory asset of $144 million related to the MGP sites. Consumers estimates that its liability to perform remediation and other response activities at NREPA sites other than the MGP sites could reach $3 million. At June 30, 2015, Consumers had a recorded liability of less than $1 million, the minimum amount in the range of its estimated probable liability. Guarantees Presented in the following table are CMS Energy’s and Consumers’ guarantees at June 30, 2015:
In Millions
|  |  | Maximum |  | Carrying |
Guarantee Description | Issue Date | Expiration Date | Obligation |  | Amount |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |
Indemnity obligations from asset sales and other agreements | Various | Various through August 2029 |  | $ | 148 | 1 |  | $ | 7 |
Guarantees | Various | Various through March 2021 |  |  | 51 |  |  |  | - |
Consumers |  |  |  |  |  |  |  |  |  |
Indemnity obligations and other guarantees | Various | Various through August 2029 |  | $ | 30 |  |  | $ | 1 |
| 1 |  | The majority of this amount arises from stock and asset sale agreements under which CMS Energy or a subsidiary of CMS Energy, other than Consumers, indemnified the purchaser for losses resulting from various matters, including claims related to tax disputes, claims related to power purchase agreements, and defects in title to the assets or stock sold to the purchaser by CMS Energy subsidiaries. Except for items described elsewhere in this Note, CMS Energy believes the likelihood of material loss to be remote for the indemnity obligations not recorded as liabilities.
Presented in the following table is additional information regarding CMS Energy’s and Consumers’ guarantees:
Guarantee Description | How Guarantee Arose | Events That Would Require Performance |
CMS Energy, including Consumers |  |  |
Indemnity obligations from asset sales and other agreements | Stock and asset sale agreements | Findings of misrepresentation, breach of warranties, tax claims, and other specific events or circumstances |
Guarantees | Normal operating activity | Nonperformance or non-payment by a subsidiary under a related contract |
Consumers |  |  |
Indemnity obligations and other guarantees | Normal operating activity | Nonperformance or claims made by a third party under a related contract |
CMS Energy, Consumers, and certain other subsidiaries of CMS Energy also enter into various agreements containing tax and other indemnity provisions for which they are unable to estimate the maximum potential obligation. These factors include unspecified exposure under certain agreements. CMS Energy and Consumers consider the likelihood that they would be required to perform or incur substantial losses related to these indemnities to be remote. Other Contingencies Michigan Sales and Use Tax Litigation: In 2010, the Michigan Department of Treasury finalized a sales and use tax audit of Consumers for the period from October 1, 1997 to December 31, 2004. It determined that Consumers’ electric and natural gas distribution equipment was not eligible for an industrial-processing exemption and therefore was subject to the use tax. Consumers paid the tax for the period from 1997 through 2004 and filed a claim in the Michigan Court of Claims disputing the tax determination. Consumers has continued to apply the industrial-processing exemption for the years subsequent to 2004. Detroit Edison Company was also denied the tax exemption and filed a similar claim in the Michigan Court of Claims, which was subsequently appealed to the Michigan Supreme Court. In July 2015, the Michigan Supreme Court issued an opinion finding that Detroit Edison Company was eligible for a partial industrial-processing exemption on its electric distribution equipment. It remanded the case back to the Michigan Court of Claims. The results of this case could affect Consumers’ claim, which could result in a partial refund of taxes paid previously or an assessment of additional taxes and interest owed for the years subsequent to 2004. Consumers cannot estimate the amount or timing of any potential tax refunds or assessments, but considers the likelihood of a material unfavorable outcome to be remote. Other: In addition to the matters disclosed in this Note and Note 2, Regulatory Matters, there are certain other lawsuits and administrative proceedings before various courts and governmental agencies arising in the ordinary course of business to which CMS Energy, Consumers, and certain other subsidiaries of CMS Energy are parties. These other lawsuits and proceedings may involve personal injury, property damage, contracts, environmental matters, federal and state taxes, rates, licensing, employment, and other matters. Further, CMS Energy and Consumers occasionally self-report certain regulatory non‑compliance matters that may or may not eventually result in administrative proceedings. CMS Energy and Consumers believe that the outcome of any one of these proceedings will not have a material negative effect on their consolidated results of operations, financial condition, or liquidity.
Consumers Energy Company [Member] |
Contingencies And Commitments | 3:CONTINGENCIES AND COMMITMENTS CMS Energy and Consumers are involved in various matters that give rise to contingent liabilities. Depending on the specific issues, the resolution of these contingencies could negatively affect CMS Energy’s and Consumers’ liquidity, financial condition, and results of operations. In their disclosures of these matters, CMS Energy and Consumers provide an estimate of the possible loss or range of loss when such an estimate can be made. Disclosures that state that CMS Energy or Consumers cannot predict the outcome of a matter indicate that they are unable to estimate a possible loss or range of loss for the matter. CMS Energy Contingencies Gas Index Price Reporting Litigation: CMS Energy, along with CMS MST, CMS Field Services, Cantera Natural Gas, Inc., and Cantera Gas Company, have been named as defendants in five class action lawsuits arising as a result of alleged inaccurate natural gas price reporting to publications that report trade information. Allegations include manipulation of NYMEX natural gas futures and options prices, price-fixing conspiracies, restraint of trade, and artificial inflation of natural gas retail prices in Kansas, Missouri, and Wisconsin. Plaintiffs are making claims for the following: full consideration damages, treble damages, exemplary damages, costs, interest, and/or attorney fees. After removal to federal court, all of the cases were transferred to a single federal district court pursuant to the multidistrict litigation process. In 2010 and 2011, all claims against CMS Energy defendants were dismissed by the district court based on FERC preemption. Plaintiffs filed appeals in all of the cases. The issues on appeal were whether the district court erred in dismissing the cases based on FERC preemption and denying the plaintiffs’ motions for leave to amend their complaints to add a federal Sherman Act antitrust claim. The plaintiffs did not appeal the dismissal of CMS Energy as a defendant in these cases, but other CMS Energy entities remain as defendants. In 2013, the U.S. Court of Appeals for the Ninth Circuit reversed the district court decision and remanded the case to the district court judge for further proceedings. The appellate court found that FERC preemption does not apply under the facts of these cases. The appellate court affirmed the district court’s denial of leave to amend to add federal antitrust claims. The matter was appealed to the U.S. Supreme Court, which in April 2015 upheld the Ninth Circuit’s decision. The cases have been remanded back to the federal district court. These cases involve complex facts, a large number of similarly situated defendants with different factual positions, and multiple jurisdictions. Presently, any estimate of liability would be highly speculative; the amount of CMS Energy’s possible loss would be based on widely varying models previously untested in this context. If the outcome after appeals is unfavorable, these cases could negatively affect CMS Energy’s liquidity, financial condition, and results of operations. Bay Harbor: CMS Land retained environmental remediation obligations for the collection and treatment of leachate, a liquid consisting of water and other substances, at Bay Harbor after selling its interests in the development in 2002. Leachate is produced when water enters into cement kiln dust piles left over from former cement plant operations at the site. In 2012, CMS Land and the MDEQ finalized an agreement that established the final remedies and the future water quality criteria at the site. CMS Land has completed all construction necessary to implement the remedies required by the agreement and will continue to maintain and operate a system to discharge treated leachate into Little Traverse Bay under an NPDES permit issued in 2010. CMS Land is presently working with the MDEQ to renew this permit, which requires renewal every five years. Various claims have been brought against CMS Land or its affiliates, including CMS Energy, alleging environmental damage to property, loss of property value, insufficient disclosure of environmental matters, breach of agreement relating to access, or other matters. CMS Land and other parties have received a demand for payment from the EPA in the amount of $8 million, plus interest. The EPA is seeking recovery under CERCLA of response costs allegedly incurred at Bay Harbor. These costs exceed what was agreed to in a 2005 order between CMS Land and the EPA, and CMS Land has communicated to the EPA that it does not believe that this is a valid claim. In August 2014, the EPA indicated that it intends to pursue the claim. CMS Energy has recorded a cumulative charge related to Bay Harbor of $246 million, which includes accretion expense. At June 30, 2015, CMS Energy had a recorded liability of $60 million for its remaining obligations. CMS Energy calculated this liability based on discounted projected costs, using a discount rate of 4.34 percent and an inflation rate of one percent on annual operating and maintenance costs. The undiscounted amount of the remaining obligation is $77 million. CMS Energy expects to pay the following amounts for long-term liquid disposal and operating and maintenance costs in 2015 and in each of the next four years:
In Millions
| 2015 | 2016 | 2017 | 2018 | 2019 |
CMS Energy |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term liquid disposal and operating and maintenance costs |  | $ | 7 |  | $ | 6 |  | $ | 5 |  | $ | 5 |  | $ | 5 |
CMS Energy’s estimate of response activity costs and the timing of expenditures could change if there are changes in circumstances or assumptions used in calculating the liability. Although a liability for its present estimate of remaining response activity costs has been recorded, CMS Energy cannot predict the ultimate financial impact or outcome of this matter. Equatorial Guinea Tax Claim: In 2002, CMS Energy sold its oil, gas, and methanol investments in Equatorial Guinea. The government of Equatorial Guinea claims that CMS Energy owes $142 million in taxes, plus significant penalties and interest, in connection with the sale and may proceed to formal arbitration. CMS Energy has concluded that the government’s tax claim is without merit. CMS Energy is vigorously contesting the claim but cannot predict the financial impact or outcome of this matter. It is possible that the outcome of this matter could negatively affect CMS Energy’s liquidity, financial condition, and results of operations. Consumers Electric Utility Contingencies Electric Environmental Matters: Consumers’ operations are subject to environmental laws and regulations. Historically, Consumers has generally been able to recover, in customer rates, the costs to operate its facilities in compliance with these laws and regulations. Cleanup and Solid Waste: Consumers expects to incur remediation and other response activity costs at a number of sites under NREPA. Consumers believes that these costs should be recoverable in rates, but cannot guarantee that outcome. Consumers estimates that its liability for NREPA sites for which it can estimate a range of loss will be between $5 million and $7 million. At June 30, 2015, Consumers had a recorded liability of $5 million, the minimum amount in the range of its estimated probable NREPA liability. Consumers is a potentially responsible party at a number of contaminated sites administered under CERCLA. CERCLA liability is joint and several. In 2010, Consumers received official notification from the EPA that identified Consumers as a potentially responsible party for cleanup of PCBs at the Kalamazoo River CERCLA site. The notification claimed that the EPA has reason to believe that Consumers disposed of PCBs and arranged for the disposal and treatment of PCB-containing materials at portions of the site. In 2011, Consumers received a follow‑up letter from the EPA requesting that Consumers agree to participate in a removal action plan along with several other companies for an area of lower Portage Creek, which is connected to the Kalamazoo River. All parties, including Consumers, that were asked to participate in the removal action plan declined to accept liability. Until further information is received from the EPA, Consumers is unable to estimate a range of potential liability for cleanup of the river. Based on its experience, Consumers estimates that its share of the total liability for known CERCLA sites will be between $3 million and $9 million. Various factors, including the number of potentially responsible parties involved with each site, affect Consumers’ share of the total liability. At June 30, 2015, Consumers had a recorded liability of $3 million for its share of the total liability at these sites, the minimum amount in the range of its estimated probable CERCLA liability. The timing of payments related to Consumers’ remediation and other response activities at its CERCLA and NREPA sites is uncertain. Consumers periodically reviews these cost estimates. Any significant change in the underlying assumptions, such as an increase in the number of sites, different remediation techniques, the nature and extent of contamination, and legal and regulatory requirements, could affect its estimates of NREPA and CERCLA liability. Ludington PCB: In 1998, during routine maintenance activities, Consumers identified PCB as a component in certain paint, grout, and sealant materials at Ludington. Consumers removed part of the PCB material and replaced it with non‑PCB material. Consumers has had several communications with the EPA regarding this matter. Consumers cannot predict the financial impact or outcome of this matter. CCRs: In April 2015, the EPA published a final rule regulating CCRs, such as coal ash, under the Resource Conservation and Recovery Act. The final rule adopts non‑hazardous minimum standards for beneficially reusing and disposing of CCRs. The rule establishes new minimum requirements for site location, groundwater monitoring, flood protection, storm water design, fugitive dust control, and public disclosure of information. The rule also sets out conditions under which CCR units would be forced to cease receiving CCR and non‑CCR waste and initiate closure based on the inability to achieve minimum safety standards, meet a location standard, or meet minimum groundwater standards. Consumers will accelerate a minor amount of its planned capital and cost of removal expenditures at its coal-fueled units to meet compliance deadlines, but does not expect any adverse changes to its environmental strategy, liquidity, financial condition, or results of operations as a result of the final rule. Consumers Gas Utility Contingencies Gas Environmental Matters: Consumers expects to incur remediation and other response activity costs at a number of sites under the NREPA. These sites include 23 former MGP facilities. Consumers operated the facilities on these sites for some part of their operating lives. For some of these sites, Consumers has no present ownership interest or may own only a portion of the original site. At June 30, 2015, Consumers had a recorded liability of $113 million for its remaining obligations for these sites. This amount represents the present value of long-term projected costs, using a discount rate of 2.57 percent and an inflation rate of 2.5 percent. The undiscounted amount of the remaining obligation is $128 million. Consumers expects to pay the following amounts for remediation and other response activity costs in 2015 and in each of the next four years:
In Millions
| 2015 | 2016 | 2017 | 2018 | 2019 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Remediation and other response activity costs |  | $ | 11 |  | $ | 12 |  | $ | 13 |  | $ | 11 |  | $ | 14 |
Consumers periodically reviews these cost estimates. Any significant change in the underlying assumptions, such as an increase in the number of sites, changes in remediation techniques, or legal and regulatory requirements, could affect Consumers’ estimates of annual response activity costs and the MGP liability. Pursuant to orders issued by the MPSC, Consumers defers its MGP-related remediation costs and recovers them from its customers over a ten-year period. At June 30, 2015, Consumers had a regulatory asset of $144 million related to the MGP sites. Consumers estimates that its liability to perform remediation and other response activities at NREPA sites other than the MGP sites could reach $3 million. At June 30, 2015, Consumers had a recorded liability of less than $1 million, the minimum amount in the range of its estimated probable liability. Guarantees Presented in the following table are CMS Energy’s and Consumers’ guarantees at June 30, 2015:
In Millions
|  |  | Maximum |  | Carrying |
Guarantee Description | Issue Date | Expiration Date | Obligation |  | Amount |
CMS Energy, including Consumers |  |  |  |  |  |  |  |  |  |
Indemnity obligations from asset sales and other agreements | Various | Various through August 2029 |  | $ | 148 | 1 |  | $ | 7 |
Guarantees | Various | Various through March 2021 |  |  | 51 |  |  |  | - |
Consumers |  |  |  |  |  |  |  |  |  |
Indemnity obligations and other guarantees | Various | Various through August 2029 |  | $ | 30 |  |  | $ | 1 |
| 1 |  | The majority of this amount arises from stock and asset sale agreements under which CMS Energy or a subsidiary of CMS Energy, other than Consumers, indemnified the purchaser for losses resulting from various matters, including claims related to tax disputes, claims related to power purchase agreements, and defects in title to the assets or stock sold to the purchaser by CMS Energy subsidiaries. Except for items described elsewhere in this Note, CMS Energy believes the likelihood of material loss to be remote for the indemnity obligations not recorded as liabilities.
Presented in the following table is additional information regarding CMS Energy’s and Consumers’ guarantees:
Guarantee Description | How Guarantee Arose | Events That Would Require Performance |
CMS Energy, including Consumers |  |  |
Indemnity obligations from asset sales and other agreements | Stock and asset sale agreements | Findings of misrepresentation, breach of warranties, tax claims, and other specific events or circumstances |
Guarantees | Normal operating activity | Nonperformance or non-payment by a subsidiary under a related contract |
Consumers |  |  |
Indemnity obligations and other guarantees | Normal operating activity | Nonperformance or claims made by a third party under a related contract |
CMS Energy, Consumers, and certain other subsidiaries of CMS Energy also enter into various agreements containing tax and other indemnity provisions for which they are unable to estimate the maximum potential obligation. These factors include unspecified exposure under certain agreements. CMS Energy and Consumers consider the likelihood that they would be required to perform or incur substantial losses related to these indemnities to be remote. Other Contingencies Michigan Sales and Use Tax Litigation: In 2010, the Michigan Department of Treasury finalized a sales and use tax audit of Consumers for the period from October 1, 1997 to December 31, 2004. It determined that Consumers’ electric and natural gas distribution equipment was not eligible for an industrial-processing exemption and therefore was subject to the use tax. Consumers paid the tax for the period from 1997 through 2004 and filed a claim in the Michigan Court of Claims disputing the tax determination. Consumers has continued to apply the industrial-processing exemption for the years subsequent to 2004. Detroit Edison Company was also denied the tax exemption and filed a similar claim in the Michigan Court of Claims, which was subsequently appealed to the Michigan Supreme Court. In July 2015, the Michigan Supreme Court issued an opinion finding that Detroit Edison Company was eligible for a partial industrial-processing exemption on its electric distribution equipment. It remanded the case back to the Michigan Court of Claims. The results of this case could affect Consumers’ claim, which could result in a partial refund of taxes paid previously or an assessment of additional taxes and interest owed for the years subsequent to 2004. Consumers cannot estimate the amount or timing of any potential tax refunds or assessments, but considers the likelihood of a material unfavorable outcome to be remote. Other: In addition to the matters disclosed in this Note and Note 2, Regulatory Matters, there are certain other lawsuits and administrative proceedings before various courts and governmental agencies arising in the ordinary course of business to which CMS Energy, Consumers, and certain other subsidiaries of CMS Energy are parties. These other lawsuits and proceedings may involve personal injury, property damage, contracts, environmental matters, federal and state taxes, rates, licensing, employment, and other matters. Further, CMS Energy and Consumers occasionally self-report certain regulatory non‑compliance matters that may or may not eventually result in administrative proceedings. CMS Energy and Consumers believe that the outcome of any one of these proceedings will not have a material negative effect on their consolidated results of operations, financial condition, or liquidity.

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