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REGULATORY MATTERS | 3 Months Ended
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Dec. 31, 2016
Regulated Operations [Abstract] |
REGULATORY MATTERS | REGULATORY MATTERS As explained in Note 1, Summary of Significant Accounting Policies, Laclede Gas and Alagasco account for regulated operations in accordance with FASB ASC Topic 980, “Regulated Operations.” The following regulatory assets and regulatory liabilities, including purchased gas adjustments, were reflected in the balance sheets of the Company and the Utilities as of December 31, 2016, September 30, 2016 and December 31, 2015.
| December 31, |  | September 30, |  | December 31,
Spire | 2016 |  | 2016 |  | 2015
Regulatory Assets: |  |  |  |  |
Current: |  |  |  |  |
Pension and postretirement benefit costs | $ | 63.2 |  |  | $ | 27.0 |  |  | $ | 26.7 |
Unamortized purchased gas adjustments | 52.2 |  |  | 49.7 |  |  | 44.6 |
Other | 19.1 |  |  | 17.2 |  |  | 5.0 |
Total Regulatory Assets (current) | 134.5 |  |  | 93.9 |  |  | 76.3 |
Non-current: |  |  |  |  |
Future income taxes due from customers | 155.5 |  |  | 151.3 |  |  | 138.7 |
Pension and postretirement benefit costs | 439.2 |  |  | 487.9 |  |  | 441.3 |
Cost of removal | 131.6 |  |  | 130.6 |  |  | 79.4 |
Purchased gas costs | 4.7 |  |  | 12.6 |  |  | 11.5 |
Energy efficiency | 26.0 |  |  | 25.5 |  |  | 23.0 |
Other | 29.4 |  |  | 30.1 |  |  | 33.1 |
Total Regulatory Assets (non-current) | 786.4 |  |  | 838.0 |  |  | 727.0 |
Total Regulatory Assets | $ | 920.9 |  |  | $ | 931.9 |  |  | $ | 803.3 |
Regulatory Liabilities: |  |  |  |  |
Current: |  |  |  |  |
Rate Stabilization and Equalization (RSE) adjustment | $ | 3.8 |  |  | $ | 7.5 |  |  | $ | 11.1 |
Unbilled service margin | 22.0 |  |  | 5.9 |  |  | 16.4 |
Refundable negative salvage | 9.0 |  |  | 9.3 |  |  | 10.5 |
Unamortized purchased gas adjustments | 1.4 |  |  | 1.7 |  |  | 14.3 |
Other | 8.0 |  |  | 6.2 |  |  | 3.5 |
Total Regulatory Liabilities (current) | 44.2 |  |  | 30.6 |  |  | 55.8 |
Non-current: |  |  |  |  |
Postretirement liabilities | 28.3 |  |  | 28.9 |  |  | 28.4 |
Refundable negative salvage | 8.9 |  |  | 9.4 |  |  | 15.8 |
Accrued cost of removal | 74.7 |  |  | 74.8 |  |  | 58.6 |
Other | 20.2 |  |  | 17.6 |  |  | 26.3 |
Total Regulatory Liabilities (non-current) | 132.1 |  |  | 130.7 |  |  | 129.1 |
Total Regulatory Liabilities | $ | 176.3 |  |  | $ | 161.3 |  |  | $ | 184.9 |
| December 31, |  | September 30, |  | December 31,
Laclede Gas | 2016 |  | 2016 |  | 2015
Regulatory Assets: |  |  |  |  |
Current: |  |  |  |  |
Pension and postretirement benefit costs | $ | 56.3 |  |  | $ | 20.2 |  |  | $ | 20.2 |
Unamortized purchased gas adjustments | 33.8 |  |  | 43.1 |  |  | 44.6 |
Other | 3.4 |  |  | 3.7 |  |  | 0.7 |
Total Regulatory Assets (current) | 93.5 |  |  | 67.0 |  |  | 65.5 |
Non-current: |  |  |  |  |
Future income taxes due from customers | 155.5 |  |  | 151.3 |  |  | 138.7 |
Pension and postretirement benefit costs | 333.3 |  |  | 375.7 |  |  | 362.2 |
Purchased gas costs | 4.7 |  |  | 12.6 |  |  | 11.5 |
Energy efficiency | 26.0 |  |  | 25.5 |  |  | 23.0 |
Other | 23.9 |  |  | 24.7 |  |  | 28.5 |
Total Regulatory Assets (non-current) | 543.4 |  |  | 589.8 |  |  | 563.9 |
Total Regulatory Assets | $ | 636.9 |  |  | $ | 656.8 |  |  | $ | 629.4 |
Regulatory Liabilities: |  |  |  |  |
Current: |  |  |  |  |
Other | $ | 2.7 |  |  | $ | 1.3 |  |  | $ | 1.1 |
Total Regulatory Liabilities (current) | 2.7 |  |  | 1.3 |  |  | 1.1 |
Non-current: |  |  |  |  |
Accrued cost of removal | 54.8 |  |  | 55.1 |  |  | 58.6 |
Other | 12.5 |  |  | 12.2 |  |  | 22.8 |
Total Regulatory Liabilities (non-current) | 67.3 |  |  | 67.3 |  |  | 81.4 |
Total Regulatory Liabilities | $ | 70.0 |  |  | $ | 68.6 |  |  | $ | 82.5 |
| December 31, |  | September 30, |  | December 31,
Alagasco | 2016 |  | 2016 |  | 2015
Regulatory Assets: |  |  |  |  |
Current: |  |  |  |  |
Pension and postretirement benefit costs | $ | 6.8 |  |  | $ | 6.8 |  |  | $ | 6.5 |
Unamortized purchased gas adjustments | 17.1 |  |  | 5.6 |  |  | — |
Other | 7.6 |  |  | 8.1 |  |  | 4.3 |
Total Regulatory Assets (current) | 31.5 |  |  | 20.5 |  |  | 10.8 |
Non-current: |  |  |  |  |
Pension and postretirement benefit costs | 96.8 |  |  | 98.9 |  |  | 79.1 |
Cost of removal | 131.6 |  |  | 130.6 |  |  | 79.4 |
Other | 1.1 |  |  | 1.2 |  |  | 4.0 |
Total Regulatory Assets (non-current) | 229.5 |  |  | 230.7 |  |  | 162.5 |
Total Regulatory Assets | $ | 261.0 |  |  | $ | 251.2 |  |  | $ | 173.3 |
Regulatory Liabilities: |  |  |  |  |
Current: |  |  |  |  |
RSE adjustment | $ | 3.8 |  |  | $ | 5.0 |  |  | $ | 11.1 |
Unbilled service margin | 22.0 |  |  | 5.9 |  |  | 16.4 |
Refundable negative salvage | 9.0 |  |  | 9.3 |  |  | 10.5 |
Unamortized purchased gas adjustments | — |  |  | — |  |  | 14.3 |
Other | 2.6 |  |  | 2.5 |  |  | 2.4 |
Total Regulatory Liabilities (current) | 37.4 |  |  | 22.7 |  |  | 54.7 |
Non-current: |  |  |  |  |
Postretirement liabilities | 28.3 |  |  | 28.9 |  |  | 28.4 |
Refundable negative salvage | 8.9 |  |  | 9.4 |  |  | 15.8 |
Other | 3.4 |  |  | 3.4 |  |  | 3.5 |
Total Regulatory Liabilities (non-current) | 40.6 |  |  | 41.7 |  |  | 47.7 |
Total Regulatory Liabilities | $ | 78.0 |  |  | $ | 64.4 |  |  | $ | 102.4 |
A portion of the Company’s and Laclede Gas’ regulatory assets are not earning a return, as shown in the schedule below:
| Spire |  | Laclede Gas
| December 31, |  | September 30, |  | December 31, |  | December 31, |  | September 30, |  | December 31,
| 2016 |  | 2016 |  | 2015 |  | 2016 |  | 2016 |  | 2015
Future income taxes due from customers | $ | 155.5 |  |  | $ | 151.3 |  |  | $ | 138.7 |  |  | $ | 155.5 |  |  | $ | 151.3 |  |  | $ | 138.7 |
Pension and postretirement benefit costs | 231.4 |  |  | 240.6 |  |  | 217.7 |  |  | 231.4 |  |  | 240.6 |  |  | 217.7 |
Other | 12.2 |  |  | 12.9 |  |  | 13.5 |  |  | 12.2 |  |  | 12.9 |  |  | 13.5 |
Total Regulatory Assets Not Earning a Return | $ | 399.1 |  |  | $ | 404.8 |  |  | $ | 369.9 |  |  | $ | 399.1 |  |  | $ | 404.8 |  |  | $ | 369.9 |
Like all the Company’s regulatory assets, these regulatory assets are expected to be recovered from customers in future rates. The Company and Laclede Gas expect these items to be recovered over a period not to exceed 15 years consistent with precedent set by the MoPSC. Alagasco does not have any regulatory assets that are not earning a return.

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