ConocoPhillips is buying Marathon Oil in an all-stock deal valued at approximately $17.1 billion as energy prices rise and big oil companies reap massive profits.

The deal is valued at $22.5 billion when including $5.4 billion in debt.

Crude prices have jumped more than 12% this year and the cost for a barrel rose above $80 this week. Oil majors put up record profits after Russia’s invasion of Ukraine in 2022 and while those numbers have slipped, there has been a surge in mergers between energy companies flush with cash.

Chevron said last year that it was buying Hess in a $53 billion acquisition, though that deal faces headwinds. The company warned the buyout may be in jeopardy because it will require the approval of Exxon Mobil and a Chinese national oil company, which both hold rights to development of an oil field off the coast of the South American nation Guyana where Hess is a big player.