Oklahoma City-based Chesapeake increased its debt offering from $750 million to $1 billion in senior notes due 2025 in a private placement and will combine the proceeds with cash from its recent asset sales to buyback outstanding debt.

The company has offered to purchase up to $1.2 billion in notes that were due between 2017 and 2022 in order to decrease its overall debt load and push out certain maturities.

Earlier