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Related Party Transactions (Tables) | 12 Months Ended
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Dec. 31, 2016
Oxy |
Related Party Transactions |
Schedule of related party transactions | As of December 31, 2016, Oxy had a representative on the board of directors of PAGP and owned approximately 13% of the limited partner interests in AAP. During the three years ended December 31, 2016, we recognized sales and transportation revenues and purchased petroleum products from Oxy. These transactions were conducted at posted tariff rates or prices that we believe approximate market. Included in these transactions was a crude oil buy/sell agreement that includes a multi-year minimum volume commitment. The impact to our Consolidated Statements of Operations from those transactions is included below (in millions):
| Year Ended December 31,
| 2016 |  | 2015 |  | 2014
Revenues | $ | 655 |  |  | $ | 866 |  |  | $ | 1,212 |
Purchases and related costs (1) | $ | 42 |  |  | $ | 41 |  |  | $ | 925 |
(1) | Purchases and related costs include crude oil buy/sell transactions that are accounted for as inventory exchanges and are presented net in our Consolidated Statements of Operations.
We currently have a netting arrangement with Oxy. Our gross receivable and payable amounts with Oxy were as follows (in millions):
| December 31,
| 2016 |  | 2015
Trade accounts receivable and other receivables | $ | 789 |  |  | $ | 405 |
Accounts payable | $ | 836 |  |  | $ | 363 |

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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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