The Present study examines the levels and trends in output and productivity of the selected Oil and Gas companies (BPCL, HPCL, IOCL, ONGC, OIL, and RIL) that account the major portion India’s total oil and gas production. We have collected the data from Prowess, Capitaline and annual reports of the selected companies and the study covers the period from 1991-2017. The study uses Data Envelope Analysis (DEA) based Malmquist productivity Index (MPI) to analyse the total factor productivity growth of the selected oil and gas companies. The study examines the trend in productivity; technical change (innovation) and technical efficiency change (catch up). The study shows rises and falls in the TFP growth; no explicit trend in the TFP growth rates is observed.

JEL Classification: D24, L7

KEY WORDS: data envelopment analysis; malmquist productivity index; total factor productivity and efficiency change and technical change; Indian oil and gas companies