| Teams 1972 Delaware 500 |
|---|
| No. | Team | Driver | Mfg |
|---|---|---|---|
| 0 | George Althied | George Altheide | Dodge |
| 1 | Canavan Racing | Earle Canavan | Plymouth |
| 4 | J. Marvin Mills | John Sears | Plymouth |
| 6 | Castle Racing | Neil Castles | Plymouth |
| 7 | Dalton Racing | Dean Dalton | Mercury |
| 8 | Negre Racing | Ed Negre | Dodge |
| 10 | Champion Racing | Bill Champion | Ford |
| 12 | Howard & Egerton Racing | Bobby Allison | Chevrolet |
| 14 | Cunningham-Kelley Racing | Coo Coo Marlin | Chevrolet |
| 16 | Team Penske | Dave Marcis | AMC Matador |
| 19 | Henley Gray Racing | Henley Gray | Ford |
| 21 | Wood Brothers Racing | David Pearson | Mercury |
| 24 | Gordon Racing | Cecil Gordon | Mercury |
| 25 | Robertson Racing | Jabe Thomas | Plymouth |
| 26 | Brooks Racing | Earl Brooks | Ford |
| 30 | Vic Ballard | Walter Ballard | Mercury |
| 34 | Scott Racing | Wendell Scott | Ford |
| 40 | US Racing | D.K. Ulrich | Ford |
| 43 | Petty Enterprises | Richard Petty | Plymouth |
| 45 | Siefert Racing | Bill Seifert | Mercury |
| 47 | Williams Racing | Raymond Williams | Ford |
| 48 | Hylton Engineering | James Hylton | Ford |
| 57 | David Ray Boggs | David Ray Boggs | Dodge |
| 61 | B & B Racing | Clarence Lovell | Ford |
| 64 | Langley Racing | Elmo Langley | Ford |
| 67 | Arrington Racing | Buddy Arrington | Dodge |
| 70 | McDuffie Racing | J.D. McDuffie | Chevrolet |
| 71 | K&K Racing | Buddy Baker | Dodge |
| 72 | DeWitt Racing | Benny Parsons | Mercury |
| 74 | Shirey Racing | Bill Shirey | Plymouth |
| 76 | Ben Arnold | Ben Arnold | Ford |
| 77 | Roberts Racing | Charlie Roberts | Ford |
| 79 | Warren Racing | Frank Warren | Dodge |
| 83 | Norris Reed | Paul Tyler | Mercury |
| 84 | Thomas Hynes | Harry Schilling | Chevrolet |
| 88 | Lubinski Racing | Ron Keselowski | Dodge |
| 89 | Jack Mercer | Les Covey | Chevrolet |
| 90 | Donlavey Racing | Ramo Stott | Ford |
| 92 | Harley Smith | Larry Smith | Ford |
| 96 | Richard Childress Racing | Richard Childress | Chevrolet |