Investor Presentaiton

CORPORATE OVERVIEW W&T-SEASONED GULF OF MEXICO ("GOM") PLAYER 4Q22 Avg. Production Total Fields FY 2022 FY 2022 Adjusted EBITDA¹ Free Cash Flow1 Louis Fairway & Mobile Bay Main Pass 108 Mississippi Canyon 243 (Matterhorn) 38.6 MBoe/d (49% liquids) 47 $563.7 MM $376.4 MM Reserve Category YE 2022 Reserves at SEC Pricing³ (MMBoe) YE 2022 PV-10 at SEC Pricing³ ($MM) Brazos A133 1P 165.3 2P 245.8 $3,129 $4,908 3P 345.3 $7,286 Gulf of Mexico Deepwater Gulf of Mexico Shelf • • ~458,000 gross acres (~384,000 net) 77% of 4022 production of 38.6 MBoe/d Proved SEC reserves of 138.1 MMBoe³ 2P SEC reserves of 195.9 MMBoe³ • Future growth potential from sub-salt projects • Federal vs State Production: Federal 65%, State 35% • • ~159,000 gross acres (~68,000 net) 23% of 4Q22 production of 38.6 MBoe/d • Proved SEC reserves of 27.2 MMBoe³ • 2P SEC reserves of 49.9 MMBoe³ Substantial upside with existing acreage Net Acreage: Federal 79%, State 21% Premier GOM Operator with Four Decades of History in the Basin Note: The outer ring of the pie charts represent contribution by field, with color indicating field location on the map 1) Adjusted EBITDA and Free Cash Flow are non-GAAP financial measures, see Appendix for description of reconciling items to GAAP net income and operating cash flow 2) Breakout between Deepwater and Shelf reflects total Company production 3) Based on year-end 2022 reserve report by NSAI at SEC pricing (1P Life) of $94.14/Bbl and $6.36/MMBtu; before differentials and excluding ARO. PV-10 is a non-GAAP financial measure, see Appendix 4 W&T OFFSHORE | NYSE:WTI Viosca Knoll 783 (Tahoe/SE Tahoe) Viosca Knoll 823 (Virgo) Mississippi Canyon 698 (Big Bend) Ship Shoal 349 (Mahogany) Ewing Bank 910 Mississippi Canyon 582 (Medusa) 2P Reserves Mix 2,3 20% 4Q22 Avg. Daily Production² By Field By Water Depth 245.8 MMBoe Shelf Deepwater All Other Fields 80% 23% 38.6 MBoe/d 77% W&T OFFSHORE

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