The Raiders traveled to Denver for a week 7 AFC matchup for the ages. The game began with a 42-yard touchdown pass by Jason Campbell to tight-end Zach Miller to put the Raiders ahead 7-0 with 10:44 remaining in the first quarter. But only 8&#160;seconds later, on the Broncos' first play from scrimmage, Kyle Orton threw an interception to Chris Johnson which was returned 30&#160;yards for a touchdown. The Raiders now led 14-0 with 10:36 remaining. But then on the Broncos' next possession, Denver fumbled the ball, which was recovered by Oakland. The Raiders capitalized on the turnover with a 4-yard rushing touchdown by Darren McFadden. But the Raiders were not yet done, forcing the Broncos to a 4th down situation on their next drive and eventually making them turn the ball over on downs, adding a field goal to the score later in the quarter for the Raiders. At the end of the first quarter, Oakland led 24-0. Oakland began the second quarter with a 19-yard touchdown pass from Jason Campbell to Darren McFadden to make the Raiders lead 31-0. Later in the quarter, McFadden again rushed for another touchdown, making the Raiders lead over the Broncos 38-0. But the Broncos would not give up, scoring a touchdown in the dying minutes of the first half when Kyle Orton hooked up with Knowshon Moreno in the end zone. At the end of the half, Oakland led 38-7. Early in the second half, the Broncos again scored a touchdown and brought Oakland's lead down to just 38-14. But the Raiders weren't done scoring yet, scoring 21 unanswered points, including a 57-yard touchdown run by Darren McFadden. At the end of the third quarter, the Raiders led 59-14. No scoring happened in the fourth quarter as the Raiders benched their starters. The Raiders deafeated Denver 59-14. With the win, not only the Raiders improve to 3-4, they've set a new team record with 59 points scored and beat the Broncos for the third straight year in Denver.
How many points did Oakland lead by at the end of the first half?
31