Extra Space Storage (EXR) said Monday that its operating partnership, Extra Space Storage LP, priced a public offering of $300 million of additional 5.7% senior notes due 2028.

The operating partnership initially issued $500 million of the notes.

The offer, priced at 102.857% of the principal amount, will be treated as a single series of securities together with the previously issued notes, the company said.

The offering is set to close on Thursday.