API-Delta Past Chairmen
| Year | Name | Company | Phone | Cell | |
| 2008 | Jan Catalano | Orx Resources | 504-581-1806 | 504-237-4735 | Jan@orx.com |
| 2007 | Bernadette Alaniz | Wellbore Energy Solutions, LLC | 337-839-2131 | 504-453-6222 | balaniz@wellboreenergysolutions.com |
| 2006 | Carlos Guzman | G Geophysics | 504-712-6875 | 504-913-6871 | cguzman@ggeophysics.com |
| 2005 | Leo Kerner | Quality Energy Services | 985-850-0025 | 504-329-5384 | leo.kerner@qualityenergy.net |
| 2004 | Richard Tucker | ||||
| 2003 | Michael del Papa | ||||
| 2002 | Dwight Paulsen | EDG, Inc. | 504-455-0858 | 504-451-9025 | dcpaulsen@edg.net |
| 2001 | Benjamin J. Waring | Waring and Associates | 504-733-3117 | 504-733-6040 | bwaring@ocsbbs.com |
| 2000 | Bart Walker | ||||
| 1999 | Don Sustendal | Amoco Production Company | 586-2771 | ||
| 1998 | Sandy Andrews | TDC Energy Corporation | - | ||
| 1997 | Andrew Thomas | Andrew Thomas & Assoc. | 216-360-9485 | ||
| 1996 | Ken Becker | Texaco, Inc. | - | ||
| 1995 | Jim Rike | Rike Service, Inc | 827-0161 | ||
| 1994 | Phil Moses | Mobil | 566-5323 | ||
| 1993 | Gerry Authement | Baker Hughes INTEQ | 561-7965 | ||
| 1992 | Bubba Hale | Baroid | 524-8282 | ||
| 1991 | Paul Loveless | Oil & Gas Property Eval. & Management, Inc. (Covington, LA) | 898-3591 | ||
| 1990 | Cheryl Collarini | Collarini Engineering | 522-9077 | ||
| 1989 | Bob Vaughn | Ocean Steamship Agency, Inc. (Metairie, LA) | 841-5175 | ||
| 1988 | Fred Pontesso | Mobil | 566-5927 | ||
| 1987 | Donald Edmonston | Chevron Chemical Bell Chasse, LA | 394-4320 | ||
| 1986 | Lloyd Toal | Collarini Engineering | Out of Country | ||
| 1985 | Cheryl Collarini | Collarini Engineering | 522-9077 | ||
| 1984 | Bob Decker | Baroid | 524-8282 | ||
| 1983 | Bob Decker | Baroid | 524-8282 | ||
| 1983 | Charles Chadwick | Exxon | Houston | ||
| 1982 | Bill Leach | Texaco | retired | ||
| 1981 | Bill Leach | Texaco | retired | ||
| 1981 | Pat Riley | CNG | 593-7000 | ||
| 1980 | Bill Waggoner | Baroid (Consultant) | 524-8282 | ||
| 1979 | Curtis Lemons | Conoco | retired | ||
| 1978 | Willard Bauman | Gulf Oil | retired |