| A trap may or may not contain oil or gas. Accumulations, or pools, are traps that contain oil or gas.<ref name=Vincelette>Vincelette, R. R., E. A. Beaumont, N. H. Foster, 2000, [http://archives.datapages.com/data/specpubs/beaumont/ch02/ch02.htm What is a trap?], in E. A. Beaumont & N. H. Foster, eds., [http://store.aapg.org/detail.aspx?id=545 Exploring for Oil & Gas Traps: AAPG Treatise of Petroleum Geology, Handbook of Petroleum Geology]. pp 2-5−6</ref> | | A trap may or may not contain oil or gas. Accumulations, or pools, are traps that contain oil or gas.<ref name=Vincelette>Vincelette, R. R., E. A. Beaumont, N. H. Foster, 2000, [http://archives.datapages.com/data/specpubs/beaumont/ch02/ch02.htm What is a trap?], in E. A. Beaumont & N. H. Foster, eds., [http://store.aapg.org/detail.aspx?id=545 Exploring for Oil & Gas Traps: AAPG Treatise of Petroleum Geology, Handbook of Petroleum Geology]. pp 2-5−6</ref> |