Charlie Sheen's Gas Problem

Someone has taken credit away from Charlie Sheen -- the thieves who stole his Mercedes earlier this month have gone on a spending spree with his Chevron card.

Sources close to the case tell TMZ Sheen's Chevron gas card was inside his sedan when it was taken from his driveway. Before rolling it down a cliff on Mulholland Drive, someone took the gas card and began filling up all around L.A. -- 7 times to be exact.

We're told cops are investigating and will visit each gas station to interview potential witnesses.