Operating through its subsidiaries, Index Oil and Gas Inc. was involved in the entire lifecycle of oil and gas properties, from procurement and exploration to appraisal, development, extraction, and eventual sale. Its primary operational areas were located in Kansas, Louisiana, and Texas. By March 31, 2009, the firm's calculated total proved oil and gas reserves stood at approximately 87.703 thousand barrels of oil equivalent (boe), a figure that encompassed 20.967 thousand barrels of crude oil and 400.414 million cubic feet of natural gas.