| Teams 2011 O'Reilly Auto Parts 300 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 1 | JD Motorsports | Mike Wallace | Chevrolet |
| 2 | Kevin Harvick Incorporated | Elliott Sadler | Chevrolet |
| 5 | Day Enterprise Racing | David Starr | Chevrolet |
| 6 | Roush Fenway Racing | Ricky Stenhouse, Jr. | Ford |
| 7 | JR Motorsports | Josh Wise | Chevrolet |
| 9 | RAB Racing | Kenny Wallace | Toyota |
| 11 | Joe Gibbs Racing | Brian Scott | Toyota |
| 12 | Team Penske | Sam Hornish, Jr. | Dodge |
| 14 | TriStar Motorsports | Eric McClure | Chevrolet |
| 15 | Rick Ware Racing | Timmy Hill | Ford |
| 16 | Roush Fenway Racing | Trevor Bayne | Ford |
| 18 | Joe Gibbs Racing | Kyle Busch | Toyota |
| 19 | TriStar Motorsports | Mike Bliss | Chevrolet |
| 20 | Joe Gibbs Racing | Joey Logano | Toyota |
| 22 | Team Penske | Brad Keselowski | Dodge |
| 23 | R3 Motorsports | Robert Richardson, J | Dodge |
| 24 | Team Rensi Motorsports | Kevin Lepage | Ford |
| 28 | Jay Robinson Racing | Derrike Cope | Chevrolet |
| 30 | Turner Scott Motorsports | Jason Leffler | Chevrolet |
| 31 | Turner Scott Motorsports | Justin Allgaier | Chevrolet |
| 32 | Turner Scott Motorsports | Reed Sorenson | Chevrolet |
| 33 | Kevin Harvick Incorporated | Paul Menard | Chevrolet |
| 38 | Turner Scott Motorsports | Kasey Kahne | Chevrolet |
| 39 | Go Green Racing | Danny O'Quinn, Jr. | Ford |
| 40 | Key Motorsports | Scott Wimmer | Chevrolet |
| 41 | Rick Ware Racing | Jennifer Jo Cobb | Ford |
| 44 | TriStar Motorsports | Jeff Green | Chevrolet |
| 49 | Jay Robinson Racing | Dennis Setzer | Chevrolet |
| 51 | Jeremy Clements Racing | Jeremy Clements | Chevrolet |
| 52 | Jimmy Means Racing | Tim Schendel | Chevrolet |
| 60 | Roush Fenway Racing | Carl Edwards | Ford |
| 62 | Rusty Wallace Racing | Michael Annett | Toyota |
| 66 | Rusty Wallace Racing | Steve Wallace | Toyota |
| 68 | Fleur-de-Lis Motorsports | Matt Carter | Chevrolet |
| 70 | ML Motorsports | Shelby Howard | Chevrolet |
| 74 | Mike Harmon Racing | J.J. Yeley | Chevrolet |
| 75 | Rick Ware Racing | Carl Long | Ford |
| 79 | 2nd Chance Motorsports | Tim Andrews | Ford |
| 81 | MacDonald Motorsports | Blake Koch | Dodge |
| 87 | NEMCO Motorsports | Joe Nemechek | Toyota |
| 88 | JR Motorsports | Aric Almirola | Chevrolet |
| 89 | Shepherd Racing Ventures | Morgan Shepherd | Chevrolet |
| 99 | Michael Waltrip Racing | David Reutimann | Toyota |