Crimson Exploration, an independent oil and gas E&P company in East and South Texas, raised $100 million, 21% less than anticipated, by offering 20 million shares at $5.00 in its IPO Wednesday evening. The company had originally planned to sell 18 million shares at a price range of $6.00-$8.00. Crimson Exploration plans to list on the NASDAQ under the symbol CXPO; Barclays Capital and Credit Suisse acted as lead managers on the deal.