$1 million-a-day gamble

Gulf of Mexico - Right now, on the outer edge of the Gulf of Mexico, Chevron Corp. is making a very big bet that, nearly six miles below where it has parked a new high-tech drillship, it will find enough oil to make this $1 million-per-day wager pay off where water depths reach nearly 7,000 feet and a vast, uninterrupted expanse of sea is the only view. Now, the only thing left to do is wait, as a drill bit far below inches closer to a target that may or may not exist. More