Encana Acquisition ULC, a wholly-owned subsidiary of Encana Corp. (TO: ECA.TO), opened a cash tender offer for all outstanding US$1 billion, 5.80% notes due May 1, the company said Feb. 28.

Encana Holdings Finance Corp. will issue the notes, the company said.

The offer is scheduled to close March 28, unless extended by Encana Acquisition ULC, the company noted.

The company will pay US$1, 004.59 for each US$1,000 principal amount of notes, plus accrued and unpaid interest, Encana Acquisition ULC said.

All untendered notes will be redeemed after the offer closes, the company said.

Barclays Capital Inc. is dealer manager, and D.F. King & Co. is the tender agent and information agent for the transaction, the company said.

Additionally, Encana Acquisition ULC seeks consents for proposed amendments to the notes’ indenture terms, the company said.

Calgary-based Encana Corp. produces oil and natural gas throughout North America.