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ASSET IMPAIRMENTS | 3 Months Ended
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Mar. 31, 2020
Fair Value Disclosures [Abstract] |
Asset Impairments | ASSET IMPAIRMENTS Triggered by the sharp drop in commodity prices at the end of the first quarter of 2020 due to decreased demand for oil and natural gas products as a result of the COVID-19 pandemic and coupled with the over-supply resulting from the OPEC+ price war, we performed impairment tests on all of our oil and natural gas properties and other assets at March 31, 2020. The following table presents a summary of our asset impairments:
| March 31,
| 2020
Asset Impairments: | (in millions)
Proved oil and natural gas properties | $ | 1,487 |
Unproved properties | 228 |
Unrecovered capital costs | 11 |
Inventory | 7 |
Other | 3 |
Total | $ | 1,736 |
Proved oil and natural gas properties — The fair values of our proved oil and natural gas properties were determined as of the date of the assessment using discounted cash flow models incorporating a number of fair value inputs which are categorized as Level 3 on the fair value hierarchy. These inputs were based on management's expectations for the future considering the current environment and included index prices based on forward curves until the market became illiquid and internally generated price forecasts thereafter, pricing adjustments for differentials, estimates of future oil and natural gas production, estimated future operating costs and capital development plans based on the embedded price assumptions. We used a market-based weighted average cost of capital to discount the future net cash flows. The impairment charge primarily related to a steamflood property located in the San Joaquin basin. Unproved properties — In the current economic environment and for the foreseeable future our ability to develop our unproved properties is constrained. Accordingly, we do not intend to develop these assets and impaired all of our unproved properties, which primarily consist of leases held by production in the San Joaquin basin. Unrecovered capital costs — Net amounts due from joint interest partners, which are included in other current assets on our condensed consolidated balance sheet, include amounts for capital and operating costs incurred by us that are recoverable solely from our partners' share of future production from associated fields. The dramatic commodity price decline during the first quarter of 2020 resulted in changes to our cash flow forecasts and we impaired the carrying value of these amounts.

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- Definition The entire disclosure for the details of the charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value. Disclosure may also include a description of the impaired asset and facts and circumstances leading to the impairment, amount of the impairment loss and where the loss is located in the income statement, method(s) for determining fair value, and the segment in which the impaired asset is reported. + References No definition available. + Details
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