SM Energy Co. (NYSE: SM) closed its buyback of 5% notes, the company said June 25.

It exchanged $500 million of notes due 2024, which were registered under the Securities Act of 1933, for original, identical notes that were issued in a May 20, 2013 private placement, SM Energy said.

All the original notes were validly tendered, the company said.

Denver-based SM Energy Co. acquires, explores, develops and produces onshore North American oil, natural gas and NGL.