DOW JONES NEWSWIRES 
 

Sunoco Inc. (SUN) swung to a first-quarter profit as its refining and supply business reported a profit as lower oil prices led to higher margins and lower expenses.

Still, Chief Executive Lynn Elsenhans said Sunoco continues to face a challenging market for petroleum and chemical products due to ongoing economic weakness. Additionally, the company implemented the first phase of its business improvement initiative and said it plans to reduce costs by over $300 million on an annualized basis by year end.

Sunoco, the second-biggest U.S. independent oil refiner by volume after Valero Energy Corp. (VLO), reported a profit of $51 million, or 10 cents a share, compared with a year-earlier loss of $38 million, or 50 cents a share. Excluding items, earnings would have been 50 cents a share.

Revenue decreased 50% to $6.44 billion.

Analysts had expected per-share earnings, excluding items, of 34 cents.

The company's core refining and supply business swung to a profit of $23 million from a year-ago loss of $123 million amid higher realized margins and lower expenses, which was partially offset by lower production volumes. Profit at its retail operations slumped 77% to $6 million.

Sunoco's shares rose 1.8% to $32 in after-hours trading.

-By John Kell, Dow Jones Newswires; 201-938-5285; john.kell@dowjones.com