U.S. construction equipment producer and diesel engine manufacturer Caterpillar Inc. today announced first-quarter results and better prospects for sales and profits in 2010. We are affirming our ratings on Caterpillar, including the 'A' long-term corporate credit rating, and revising the outlook to stable from negative. The stable outlook reflects our expectation that a more favorable economic environment and continued conservative financial policy will allow Caterpillar to improve credit measures in the near-term. NEW YORK (Standard&Poor's) April 26, 2010--Standard&Poor's Ratings Services said today it revised the outlook on Peoria, Ill.-based construction equipment producer and diesel engine manufacturer Caterpillar Inc. and its wholly owned finance subsidiary, Caterpillar Financial Services Corp., to stable from negative. At the same time,