OKLAHOMA CITY (AP) — Chesapeake Energy said on Monday that it will sell a 50 percent stake in oil and natural gas-rich land in Oklahoma to Chinese oil company Sinopec for $1.02 billion as the natural gas producer continues selling off assets to repay debt.

Chesapeake is the second-largest producer of natural gas in the U.S. after Exxon Mobil. Hurt by low natural gas prices, it has sold off billions in assets to pay off debt incurred as it rushed to buy land and other assets. It’s also increasingly focused on more lucrative oil and gas liquids.