PHILLIPS <P> RAISES CRUDE POSTINGS 50 CTS Phillips Petroleum said it raised the contract price it will for all grades of crude oil 50 cts a barrel, effective today. The increase brings Phillip's posted price for the West Texas Intermediate and West Texas Sour grades to 17.50 dlrs a bbl. Phillips last changed its crude oil postings on March 4. The price increase follows similar moves by USX's <X> subsidiary, Marathon oil, and Sun Co <SUN> earlier today.