XML 48 R33.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Accounting for Derivative Instruments (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Volumetric Underlying Derivative Transactions | The following table summarizes the net notional volume buy/(sell) of the Company’s open derivative financial instruments accounted for at fair value, broken out by commodity, as of (in thousands): Non-trading
Commodity | Notional |  | December 31, 2016 |  | December 31, 2015
Natural Gas | MMBtu |  | 8,016 |  |  | 7,543 |
Natural Gas Basis | MMBtu |  | — |  |  | 455 |
Electricity | MWh |  | 3,958 |  |  | 1,187 |
Trading
Commodity | Notional |  | December 31, 2016 |  | December 31, 2015
Natural Gas | MMBtu |  | (953 | ) |  | 8 |
Natural Gas Basis | MMBtu |  | (380 | ) |  | (455 | )
Gains (Losses) on Derivative Instruments | Gains (losses) on derivative instruments, net and current period settlements on derivative instruments were as follows for the periods indicated (in thousands):
| Year Ended December 31,
| 2016 |  | 2015 |  | 2014
Gain (loss) on non-trading derivatives, net | 22,254 |  |  | (18,423 | ) |  | (8,713 | )
Gain (loss) on trading derivatives, net (including gain on trading derivatives—affiliates, net of $0, $0 and $203 for the years ended December 31, 2016, 2015 and 2014, respectively) | 153 |  |  | (74 | ) |  | (5,822 | )
Gain (loss) on derivatives, net | $ | 22,407 |  |  | $ | (18,497 | ) |  | $ | (14,535 | )
Current period settlements on non-trading derivatives (1) (2) | (2,284 | ) |  | 20,279 |  |  | (6,289 | )
Current period settlements on trading derivatives (including current period settlements on trading derivatives—affiliates, net of $0, $0 and $315 for the years ended December 31, 2016, 2015 and 2014, respectively) | 138 |  |  | 268 |  |  | 2,810 |
Total current period settlements on derivatives (1) (2) | $ | (2,146 | ) |  | $ | 20,547 |  |  | $ | (3,479 | )
(1) | Excludes settlements of $1.0 million and $3.4 million, respectively, for the years ended December 31, 2016 and 2015, respectively related to non-trading derivative liabilities assumed in the acquisitions of CenStar and Oasis.
(2) | Excludes settlements of $25.6 million for the year ended December 31, 2016 related to non-trading derivative liabilities assumed in the acquisitions of Provider Companies and Major Energy Companies.
Offsetting Assets |
| December 31, 2015
Description | Gross Assets |  | Gross Amounts Offset |  | Net Assets |  | Cash Collateral Offset |  | Net Amount Presented
Non-trading commodity derivatives | $ | 589 |  |  | $ | (389 | ) |  | $ | 200 |  |  | $ | — |  |  | $ | 200 |
Trading commodity derivatives | 411 |  |  | (6 | ) |  | 405 |  |  | — |  |  | 405 |
Total Current Derivative Assets | 1,000 |  |  | (395 | ) |  | 605 |  |  | — |  |  | 605 |
Non-trading commodity derivatives | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total Non-current Derivative Assets | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total Derivative Assets | $ | 1,000 |  |  | $ | (395 | ) |  | $ | 605 |  |  | $ | — |  |  | $ | 605 |
The following tables summarize the fair value and offsetting amounts of the Company’s derivative instruments by counterparty and collateral received or paid as of (in thousands):
| December 31, 2016
Description | Gross Assets |  | Gross Amounts Offset |  | Net Assets |  | Cash Collateral Offset |  | Net Amount Presented
Non-trading commodity derivatives | $ | 19,657 |  |  | $ | (11,844 | ) |  | $ | 7,813 |  |  | $ | — |  |  | $ | 7,813 |
Trading commodity derivatives | 614 |  |  | (83 | ) |  | 531 |  |  | — |  |  | 531 |
Total Current Derivative Assets | 20,271 |  |  | (11,927 | ) |  | 8,344 |  |  | — |  |  | 8,344 |
Non-trading commodity derivatives | 7,874 |  |  | (4,791 | ) |  | 3,083 |  |  | — |  |  | 3,083 |
Total Non-current Derivative Assets | 7,874 |  |  | (4,791 | ) |  | 3,083 |  |  | — |  |  | 3,083 |
Total Derivative Assets | $ | 28,145 |  |  | $ | (16,718 | ) |  | $ | 11,427 |  |  | $ | — |  |  | $ | 11,427 |
Offsetting Liabilities |
| December 31, 2016
Description | Gross Liabilities |  | Gross Amounts Offset |  | Net Liabilities |  | Cash Collateral Offset |  | Net Amount Presented
Non-trading commodity derivatives | $ | (662 | ) |  | $ | 69 |  |  | $ | (593 | ) |  |  |  |  | $ | (593 | )
Trading commodity derivatives | (92 | ) |  | 5 |  |  | (87 | ) |  | — |  |  | (87 | )
Total Current Derivative Liabilities | (754 | ) |  | 74 |  |  | (680 | ) |  | — |  |  | (680 | )
Non-trading commodity derivatives | (305 | ) |  | 237 |  |  | (68 | ) |  | — |  |  | (68 | )
Total Non-current Derivative Liabilities | (305 | ) |  | 237 |  |  | (68 | ) |  | — |  |  | (68 | )
Total Derivative Liabilities | $ | (1,059 | ) |  | $ | 311 |  |  | $ | (748 | ) |  | $ | — |  |  | $ | (748 | )
| December 31, 2015
Description | Gross Liabilities |  | Gross Amounts Offset |  | Net Liabilities |  | Cash Collateral Offset |  | Net Amount Presented
Non-trading commodity derivatives | $ | (13,618 | ) |  | $ | 3,151 |  |  | $ | (10,467 | ) |  | $ | 100 |  |  | $ | (10,367 | )
Trading commodity derivatives | (320 | ) |  | 67 |  |  | (253 | ) |  | — |  |  | (253 | )
Total Current Derivative Liabilities | (13,938 | ) |  | 3,218 |  |  | (10,720 | ) |  | 100 |  |  | (10,620 | )
Non-trading commodity derivatives | (950 | ) |  | 332 |  |  | (618 | ) |  | — |  |  | (618 | )
Total Non-current Derivative Liabilities | (950 | ) |  | 332 |  |  | (618 | ) |  | — |  |  | (618 | )
Total Derivative Liabilities | $ | (14,888 | ) |  | $ | 3,550 |  |  | $ | (11,338 | ) |  | $ | 100 |  |  | $ | (11,238 | )
Accumulated Other Comprehensive Income |
| December 31, 2015
Description | Gross Liabilities |  | Gross Amounts Offset |  | Net Liabilities |  | Cash Collateral Offset |  | Net Amount Presented
Non-trading commodity derivatives | $ | (13,618 | ) |  | $ | 3,151 |  |  | $ | (10,467 | ) |  | $ | 100 |  |  | $ | (10,367 | )
Trading commodity derivatives | (320 | ) |  | 67 |  |  | (253 | ) |  | — |  |  | (253 | )
Total Current Derivative Liabilities | (13,938 | ) |  | 3,218 |  |  | (10,720 | ) |  | 100 |  |  | (10,620 | )
Non-trading commodity derivatives | (950 | ) |  | 332 |  |  | (618 | ) |  | — |  |  | (618 | )
Total Non-current Derivative Liabilities | (950 | ) |  | 332 |  |  | (618 | ) |  | — |  |  | (618 | )
Total Derivative Liabilities | $ | (14,888 | ) |  | $ | 3,550 |  |  | $ | (11,338 | ) |  | $ | 100 |  |  | $ | (11,238 | )

X
- References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of derivative and other financial assets that are subject to offsetting, including master netting arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225877-175312 + Details
Name: | us-gaap_OffsettingAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of derivative and other financial liabilities that are subject to offsetting, including master netting arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225877-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_OffsettingLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959 + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the notional amounts of outstanding derivative positions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959 + Details
Name: | us-gaap_ScheduleOfNotionalAmountsOfOutstandingDerivativePositionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration