Twenty-one players were still out on the TPC of Virginia course when play was halted. They will return to the course Saturday morning at 7:30 a.m. to complete the first round.
Sheehan was three-over on his round after 10 holes but he went on a birdie tear to get to the top of the leaderboard. He ran home a three-footer at 11 and tapped in for birdie at the next hole.
He holed a five-foot birdie at No. 14 and once again collected back-to-back birdies when he drained a 20-footer at 15. Sheehan closed out his round with a 10-foot birdie at 17.
'Making bogey is one thing, but I was making some horrible golf shots on the first few holes,' Sheehan said. 'But the birdie on the sixth hole got me going, and I played really well on the back nine.'
Buha matched the course record Friday with the best round of the day, an eight-under 64. Deane Pappas, Charley Hoffman and Jeff Freeman all set the mark in last year's tournament.
Black, a two-time winner on the PGA Tour, posted four birdies and no bogeys in his second round for a 68.
'For some reason, I can see the lines on the greens really well here and at Kingsmill,' said Black, who won the 1984 Anheuser-Busch Golf Classic at nearby Kingsmill Golf Club. 'This is a beautiful golf course, and while it is very challenging, it is also a lot of fun to play.'
Wright overcame an early bogey with four birdies the rest of the way. He shot a 69 to reach six-under par.
Tag Ridings (72), Cliff Kresge (71), Mike Heinen (69), Arron Oberholser (67), Danny Briggs (67), Jim Benepe (69) and Pete Morgan (68), share fifth place at minus-five.