Anadarko Petroleum Corp. repeatedly spurned rival Occidental Petroleum Corp.'s approaches and pushed for all-cash offers, fearing the market's reaction to the blockbuster $38 billion deal, according to securities filings released June 7. Occidental last month beat out Chevron Corp. to grab the oil industry's biggest prize: nearly a quarter million acres in the Permian Basin, the top U.S. shale field, where low-cost output has helped turn the United States into the world's top oil producer at more than 12 million barrels per day. The rivalry drove up the sale price and guaranteed a huge payday for Anadarko executives, Chevron and deal advisers, the filing showed. Anadarko CEO Al Walker will get $98 million and President Robert Gwin $55 million.