During the boom years, companies, banks, and other private sector players used all kinds of tactics to tilt the oil sector playing field in their favor. They wined and dined top decision-makers, went into business with political insiders, and paid bribes, often via middlemen or fixers. Collusion and tax avoidance reared their heads too. Stories from Angola, Australia, Chad, Congo-Brazzaville, Libya, Nigeria, Norway, and the United States reveal the risks companies took in order to win a piece of the oil boom action.