SAN FRANCISCO (AP) — A strike at a supermarket chain with stores in Northern California and Nevada is over after workers and the company reached a tentative agreement on a new contract. Raley's and the United Food and Commercial Workers union announced the deal on Tuesday. Union officials said that picket lines would immediately be withdrawn from all Raley's and Nob Hill stores. The parties did not provide any details of the settlement. However, the union says it was able to retain one of its most important benefits, a union-run health plan. The grocery chain and UFCW returned to the bargaining table over the weekend in San Francisco following the Nov. 4 strike. The two sides had been at odds over wages and benefits, including Raley's proposal to eliminate health care benefits for retirees eligible for Medicare.