Retailco LLC is off-loading 1.5 million class A shares ofSpark Energy Inc. viaan underwritten secondary public offering that is expected to close April 4.

Retailco has also granted underwriters a 30-day option topurchase up to an additional 225,000 shares, according to a March 29 newsrelease.

Spark Energy will not receive any proceeds from theoffering.

FBR Capital Markets & Co. is serving as sole book-runningmanager while Janney Montgomery Scott LLC, Wunderlich Securities Inc. andLadenburg Thalmann & Co. Inc. are acting as lead managers of the offering.USCA Securities LLC and Drexel Hamilton LLC are serving as co-managers of theoffering.

Spark Energy is majority-owned by .