There's a theory out there (which I subscribe to, with certain caveats) which states that NHL players have no noticeable impact on on-ice save percentage, and a small impact on on-ice shooting percentage.

Therefore, since these things fluctuate quite a bit between players on the same team, we can chalk much of it up to luck, bounces, and other unrepeatable stuff - and these things can make us regard players as either better or worse than they really are.

Enter PDO numbers.  The PDO number is a simple measure of even-strength on-ice shooting percentage and save percentage.  The league average, for obvious reasons, is 100.  After the jump: those numbers for the Oilers so far this season.

Forwards

• Dustin Penner: 111.8
• Andrew Cogliano: 111.0
• Zack Stortini: 108.5
• Ethan Moreau: 108.3
• Gilbert Brule: 108.1
• Sam Gagner: 106.9
• Ales Hemsky: 105.8
• TEAM AVERAGE: 105.4
• J-F Jacques: 104.7
• Patrick O'Sullivan: 103.5
• Robert Nilsson: 102.0
• Mike Comrie: 101.5
• LEAGUE AVERAGE: 100.0
• Shawn Horcoff: 96.4
• Ryan Stone: 94.0

Defence

• Ladislav Smid: 110.6
• Taylor Chorney: 109.5
• Lubomir Visnovsky: 108.8
• Jason Strudwick: 105.4
• TEAM AVERAGE: 105.4
• Steve Staios: 104.3
• Tom Gilbert: 101.6
• LEAGUE AVERAGE: 100.0
• Denis Grebeshkov: 99.6
• Sheldon Souray: 99.4
• Theo Peckham: 89.5