• Oil reserve life and the influence of crude oil prices: An analysis of Texas reserves.

      Apergis, Nicholas; Ewing, Bradley; Payne, James; University of Piraeus; Texas Tech University; Georgia College & State University (Elsevier., 2016-02-27)
      Oil producing exploration and production companies generate revenue from reserves which, from any given well, are depleting over time. The reserve life index measures how long reserves would last at the current production rate if there were no additions to reserves. In this study, we examine the time series behavior of the reserve life index for each of the twelve onshore oil producing districts in Texas. Specifically, we model the relationship between reserve life and the real price of oil within a nonlinear ARDL framework. Among the results, we find evidence of both long-run and short-run asymmetries in the response of reserve life to increases/decreases in real oil prices. Further, the magnitude of the effect is greater for positive changes in real oil prices than for negative changes in real oil prices. The findings are important to operators, investors and policymakers interested in sustainability.
    • A time series analysis of oil production, rig count and crude oil price: Evidence from six U.S. oil producing regions.

      Apergis, Nicholas; Ewing, Bradley; Payne, James; University of Piraeus; Texas Tech University; Georgia College & State University (Elsevier., 2016-01-25)
      With oil company valuations tied in part to oil well drilling to replace reserves at a rate that exceeds production, understanding the dynamic relationship between the development of oil rigs and oil production is important. This study focuses on the Bakken, Eagle Ford, Haynesville, Marcellus, Niobrara, and Permian regions, historically the six major oil producing regions in the U.S. Specifically, we apply time series econometric techniques of unit root, cointegration, and error correction modeling to examine the dynamic relationship among oil production, rig count, and crude oil prices for each of these six U.S. oil producing regions. The results of this study highlight the importance of identifying the regional variations in oil production, rig count, and crude oil prices and their interactions in both the valuation of oil firms and capital investment projects as it pertains to oil drilling activity.