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

Derivative Financial Instruments - Summary of Open Commodity Derivative Contracts (Details)

Derivative Financial Instruments - Summary of Open Commodity Derivative Contracts (Details)	12 Months Ended
	Dec. 31, 2021 item MMBTU $ / MMBTU $ / bbl bbl
NYMEX Crude Oil Swap \| Jan 2022 - Nov 2022
Average daily volume \| bbl	2,525
Total Volumes	843,256
Weighted Price (in dollars per share) \| $ / bbl	49.99
NYMEX Crude Oil Collar \| Jan 2022 - Nov 2022
Average daily volume \| bbl	2,428
Total Volumes	811,096
NYMEX Crude Oil Collar \| Jan 2022 - Nov 2022 \| Put Option
Weighted Price (in dollars per share) \| $ / bbl	41.71
NYMEX Crude Oil Collar \| Jan 2022 - Nov 2022 \| Call Option
Weighted Price (in dollars per share) \| $ / bbl	58.91
NYMEX Natural Gas Henry Hub Call \| Jan 2022 - Dec 2022
Average daily volume \| MMBTU	116,853
Total Volumes	42,651,402
NYMEX Natural Gas Henry Hub Call \| Jan 2022 - Dec 2022 \| Call Option
Weighted Price (in dollars per share) \| $ / MMBTU	3.93
NYMEX Natural Gas Henry Hub Call \| Jan 2023 - Dec 2023
Average daily volume \| MMBTU	70,000
Total Volumes	25,550,000
NYMEX Natural Gas Henry Hub Call \| Jan 2023 - Dec 2023 \| Call Option
Weighted Price (in dollars per share) \| $ / MMBTU	3.50
NYMEX Natural Gas Henry Hub Call \| Jan 2024 - Dec 2024
Average daily volume \| MMBTU	65,000
Total Volumes	23,790,000
NYMEX Natural Gas Henry Hub Call \| Jan 2024 - Dec 2024 \| Call Option
Weighted Price (in dollars per share) \| $ / MMBTU	3.50
NYMEX Natural Gas Henry Hub Call \| Jan 2025 - Dec 2025
Average daily volume \| MMBTU	62,000
Total Volumes	5,580,000
NYMEX Natural Gas Henry Hub Call \| Jan 2025 - Dec 2025 \| Call Option
Weighted Price (in dollars per share) \| $ / MMBTU	3.50
NYMEX Natural Gas Henry Hub Collar \| Jan 2022 - Dec 2022
Average daily volume \| MMBTU	47,370
Total Volumes	17,290,000
NYMEX Natural Gas Henry Hub Collar \| Jan 2022 - Dec 2022 \| Put Option
Weighted Price (in dollars per share) \| $ / MMBTU	1.89
NYMEX Natural Gas Henry Hub Collar \| Jan 2022 - Dec 2022 \| Call Option
Weighted Price (in dollars per share) \| $ / MMBTU	3.17
NYMEX Natural Gas Henry Hub Swap \| Jan 2022 - Nov 2022
Average daily volume \| MMBTU	17,160
Total Volumes	5,731,485
Weighted Price (in dollars per share) \| $ / MMBTU	2.60
NYMEX Natural Gas Henry Hub Swap \| Jan 2022 - Dec 2022
Average daily volume \| MMBTU	78,904
Total Volumes	28,800,000
Weighted Price (in dollars per share) \| $ / MMBTU	2.69
NYMEX Natural Gas Henry Hub Swap \| Jan 2023 - Dec 2023
Average daily volume \| MMBTU	72,329
Total Volumes	26,400,000
Weighted Price (in dollars per share) \| $ / MMBTU	2.48
NYMEX Natural Gas Henry Hub Swap \| Jan 2024 - Dec 2024
Average daily volume \| MMBTU	65,574
Total Volumes	24,000,000
Weighted Price (in dollars per share) \| $ / MMBTU	2.46
NYMEX Natural Gas Henry Hub Swap \| Jan 2025 - Mar 2025
Average daily volume \| MMBTU	63,333
Total Volumes	5,700,000
Weighted Price (in dollars per share) \| $ / MMBTU	2.72
NYMEX Natural Gas Henry Hub Put \| Apr 2025 - Dec 2025
Average daily volume \| MMBTU	62,182
Total Volumes	17,100,000
NYMEX Natural Gas Henry Hub Put \| Apr 2025 - Dec 2025 \| Put Option
Weighted Price (in dollars per share) \| $ / MMBTU	2.27
NYMEX Natural Gas Henry Hub Put \| Jan 2026 - Dec 2026
Average daily volume \| MMBTU	55,890
Total Volumes	20,400,000
NYMEX Natural Gas Henry Hub Put \| Jan 2026 - Dec 2026 \| Put Option
Weighted Price (in dollars per share) \| $ / MMBTU	2.35
NYMEX Natural Gas Henry Hub Put \| Jan 2027 - Dec 2027
Average daily volume \| MMBTU	52,603
Total Volumes	19,200,000
NYMEX Natural Gas Henry Hub Put \| Jan 2027 - Dec 2027 \| Put Option
Weighted Price (in dollars per share) \| $ / MMBTU	2.37
NYMEX Natural Gas Henry Hub Put \| Jan 2028 - Apr 2028
Average daily volume \| MMBTU	49,587
Total Volumes	6,000,000
NYMEX Natural Gas Henry Hub Put \| Jan 2028 - Apr 2028 \| Put Option
Weighted Price (in dollars per share) \| $ / MMBTU	2.50