W&T Offshore, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Basis of Presentation (Policies)
Notes Tables
Notes Details

Basis of Presentation - Additional Information (Details)

v3.4.0.3

Basis of Presentation - Additional Information (Details) $ in Thousands				1 Months Ended		3 Months Ended		12 Months Ended
	Jun. 30, 2016 USD ($)	May. 30, 2016 USD ($)	May. 02, 2016 USD ($)	Mar. 31, 2016 USD ($) Order	Feb. 29, 2016 USD ($) Order	Mar. 31, 2016 USD ($) $ / bbl $ / MMBTU	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)	Mar. 23, 2016 USD ($)
Basis Of Presentation [Line Items]
Revolving bank credit facility				$ 288,000	$ 340,000	$ 288,000
Repayments of revolving bank credit facility						52,000	$ 15,000
Total outstanding orders amount				260,800		$ 260,800
Supplemental bonding required by Bureau of Ocean Energy Management				$ 68,000	$ 159,800
Number of supplemental bonding order \| Order				2	3
Percentage of discount from proved reserves						10.00%
Ceiling test write-down of oil and natural gas properties						$ 116,559	$ 260,390	$ 987,200
SEC Methodology \| Natural Gas
Basis Of Presentation [Line Items]
Weighted price \| $ / MMBTU						2.40
SEC Methodology \| Crude Oil Per Barrel
Basis Of Presentation [Line Items]
Weighted price \| $ / bbl						42.77
Credit Agreement
Basis Of Presentation [Line Items]
Revolving bank credit facility				$ 288,000		$ 288,000
Repayments of revolving bank credit facility						52,000
Letters of credit outstanding				$ 1,000		$ 1,000
Revolving bank credit facility borrowing base					$ 350,000				$ 150,000
Credit Agreement \| Subsequent Event
Basis Of Presentation [Line Items]
Repayments of revolving bank credit facility			$ 12,000
Credit Agreement \| Scenario, Forecast
Basis Of Presentation [Line Items]
Repayments of revolving bank credit facility	$ 64,000	$ 64,000

- Definition

The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced.

+ References

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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No definition available.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

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- Definition

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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- Definition

The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

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Basis of presentation.

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- Definition

Number of supplemental bonding order.

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Present value discounted percentage.

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- Definition

Supplemental bonding outstanding orders amount.

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- Definition

Supplemental bonding required by Bureau of Ocean Energy Management.

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- Definition

Weighted average prices used to estimate reserves.

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