AmerUs Group Company says it has completed a previously announced effort to buy back senior notes that were due in 2011.

Note holders have sold notes with a total principal value of about $125 million to the company, according to AmerUs, Des Moines, Iowa, which is now a unit of Aviva P.L.C., London.

The notes involved in the tender offer paid an interest rate of 6.583%.

Holders have tendered notes representing about 87% of the principal amount associated with the notes in that class, AmerUs reports.

AmerUs has obtained the consents it needed to delete a covenant in the note documents that restricted the company’s ability to transfer company assets through corporate mergers and consolidations, AmerUs says.

AmerUs has amended the documents, or “indentures,” that govern the notes, the company says.

AmerUs paid $1,068.93 per $1,000 of principal for notes tendered on or before 5 p.m. Dec. 15, and it paid $1,048.93 per $1,000 of principal for notes tendered between 5 p.m. Dec. 15 and 5 p.m. Jan. 3.

AmerUs also paid holders who sold it the notes for any interest that had accrued but had not yet been paid, the company says.