Brenda Merideth
Advertising Coordinator
bmer@aapg.org
+1 800 288 7636
(US and Canada only)
+1 918 560 2647
Fax: +1 918 560 2636
Membership Statistics and Readership Survey Results
AAPG Membership Statistics
The membership of the American Association of Petroleum Geologists represents over 31,000 geoscientists worldwide, geographically located in the oil-producing regions of the earth. AAPG is the world’s largest geological society.
Membership Classifications
- Active Members
- Have a bachelor's degree in the geological sciences and a minimum of three years experience in the professional practice or the teaching of geology. A master’s degree subtracts one year from the experience requirements, and a doctorate subtracts two.
- Student Members
- Are undergraduates majoring in geology at a college of acceptable academic standards.
- Associate Members
- Are graduates of a college of acceptable academic standards whose major studies relate to, or are generally associated with geology.
Branches of the Association
AAPG provides an umbrella for several divisions dedicated to more specialized goals. These are:
- Division of Professional Affairs
- Involved with the certification of petroleum geologists, and with the improvement of a member’s professional well-being. Members of the Association who desire professional recognition may apply for certification as a qualified petroleum geologist. Generally, members must have at least eight years actual experience, and must meet and pass certain other review criteria. Visit DPA's Web site.
- DPA membership is 2,925.
- Energy Minerals Division
- Founded to provide a 'home' for those geologists involved in the exploration and exploitation of energy resources other than petroleum and natural gas. A forum is provided for research and discussion of topics such as coal, uranium, tar sands, oil shale, geothermal, etc. Visit EMD's Web site.
- EMD membership is 1,196.
- Division of Environmental Geosciences
- Formed in 1992 to address environmental issues from a geological point of view and meet the needs of geologists involved in environmental geology, waste management and hydrology. Visit DEG's Web site.
- DEG membership is 1,174.



