Great PlainsEnergy Inc. registered 44,604,333 shares as part of its intent toacquireWestar Energy Inc.in a deal valued at $12.2 billion, including about $3.6 billion of assumed debt.

The shares will make up the stock consideration of theoffer. Great Plains is offering$51 in cash and anywhere between 0.2709 and 0.3148 of a share of its stock forevery Westar share it does not own.

The shares have a proposed maximum value of $731.8 million,according to a Form S-4 filed July 14.