On. Nov. 17, Midstates Petroleum Co. Inc. (MPO) said that the exchange offer for outstanding 10% senior secured second-lien notes now expires on Nov. 18.

The notes are due in 2020. Holders of notes previously tendered for exchange will be able to withdraw tenders at any time prior to the expiration. On Nov. 16, holders of about $624.8 million, or or 99%, of the outstanding second-lien notes had tendered them for exchange.

Midstates Petroleum Co. Inc. is based in Tulsa, Okla.