SOCAL OFF 25.6%
Weakened by sagging demand and lower oil prices, the Exxon Corporation's net income rose 6.9 percent in the fourth quarter, while that of the Standard Oil Company of California skidded 25.6 percent, the companies reported yesterday. Both had lower earnings for the full year, and cited in part the costs resulting from their obligation to purchase oil from Saudi Arabia at that country's benchmark price of $34 a barrel for Saudi Light crude at a time when others were selling similar crude oil at lower prices. Exxon and Socal are partners in the Arabian American Oil Company, or Aramco, which produces Saudi Arabia's oil and markets most of it. The four American companies in the partnership - Exxon, Standard Oil, Texaco and Mobil - are committed to purchase Saudi oil at $34, although the price of Saudi Light oil on the spot, or noncontract market has fallen to as low as $28 a barrel. The companies process the Saudi crude and market the resulting petroleum products. Profits have been squeezed by falling retail prices for these products.