Houston Director, Environmental Section, 1994-1998 Chair, Environmental Section, 1999-2000 and American Bar Associations State Bar of Texas Member, Environmental and Natural Resources Section.

Houston Bar Association State Bar of Texas Member, Environmental and Natural Resources Section.

Houston, Hidalgo County and Federal Bar Associations Fifth Circuit Bar Association.

State Bar of Texas.

State Bar of Texas

Houston and American Bar Associations State Bar of Texas Houston Young Lawyers Association Texas Association of Defense Counsel Defense Research Institute.

Houston and American Bar Associations.

Houston, American Member, Sections on Litigation Intellectual Property Law Natural Resources, Energy and Environmental Law and Federal Member, Litigation Section Bar Associations State Bar of Texas Member, Sections on Litigation Corporate Law