ON NORTH SEA RIG Ekofisk Trip Builds Camaraderie Among Phillips Petroleum Directors Editor’s Note: Dolores Wharton of Cooperstown and NYC, the SUNY system’s former First Lady, was the first black woman, as well as the first black, on a number of Fortune 500 boards. In her new memoir, “A Multicultural Life,” she describes Phillips Petroleum directors’ 1990 camaraderie-building trip to a North Sea oil rig, which helped “the old guard (adjust) to us interlopers.” By DOLORES WHARTON • from “A…