Prima

Denver-based Prima Energy Corp., an independent natural gas and oil company, has adopted a Stockholder Rights Plan designed to provide additional negotiating leverage to the company’s board of directors in the event of an unsolicited takeover bid, and to protect the company’s stockholders against inadequate offers and “abusive takeover tactics.” Under the plan, the company will distribute one right for each outstanding share of common stock to holders of record at the close of business on June 8. The plan would generally be triggered if an acquiring party accumulated 15% or more of the company’s common stock. Most of the company’s current activities are focused in the Rocky Mountains.