Some investments hit the jackpot, like the billion-plus barrels of future oil discovered by Chevron's exploration drilling last year. But behind the headlines, other investments pay off even bigger, notably the company's multi-year campaign to improve our base business, which is now delivering a production decline of less than 3 percent. With an emphasis on quality wells, efficient facilities, reliable equipment, and production optimization, this improvement in the decline rate equates to roughly 275,000 barrels of production per day.