Goals from Mark Noble and Matthew Upson condemned Wolves to a 2-0 defeat on their return to the Premier League after a six-year absence.
Noble made the breakthrough for West Ham in the 22nd minute when he clipped a shot over Wayne Hennessy after being released by Carlton Cole.
Wolves again defended poorly in the 69th minute with Upson scoring at the back post following a corner from Noble.
West Ham made the breakthrough after 22 minutes. Cole played the ball across the face of the area, and Noble was given time and space to clip a shot over Wayne Hennessey.
Wolves hit back in the 29th minute when Andy Keogh released Matt Jarvis but could not get enough power or direction on his shot.
Hennessey did well to parry Cole's effort, and the ball broke to Kieron Dyer. He rattled in a shot, only for Jody Craddock to clear off the line and concede a corner. Noble picked out Herita Ilunga with his delivery, but he headed over the bar.
Mick McCarthy's side were being exposed at the back and Jack Collison headed on Julien Faubert's long ball with ease in the 41st minute. Collison, though, failed to pick out a team-mate.
Wolves made a rousing start to the second half, and Robert Green did well to turn away Nenad Milijas's shot in the 47th minute. West Ham almost added a second six minutes later following a mistake by Craddock.
He played in Collison, who looked certain to score from inside the six-yard area but tried to place it - and Kevin Foley cleared off the line.
West Ham could have added a third in the 82nd minute, but Jimenez's shot came back off Hennessey's chest.
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