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In this study, we compared quantities of gas flared by the Joint Venture Companies in Nigeria. The ultimate objectives of the study were to ascertain the patterns in quantities of gas flared by the individual companies, to determine if there was a reduction in gas flaring in Nigeria and to verify whether the reduction, if any, is uniform among the Joint Venture Companies. Data on quantities of gas flared and quantities of oil produced in cubic meters (m3) by the Joint Venture Companies were collected from 2015 Annual Statistical Bulletin of Nigerian National Petroleum Corporation (NNPC) through the website:www.nnpcgroup.com. The time plot of the data showed a general reduction in the quantities of gas flared by the companies over the period under review. However, the reduction was found not to be uniform across the Joint Venture Companies. This disparity in the patterns of quantities of gas flared was confirmed by virtue of Analysis of Covariate Residual (ANCOVRES
Bluman, A.G (2001), Elementary Statistics: A step by Step Approach ,4th edition, McGraw Hill Companies Inc., New York.
Ceyhan, E. and Goad, C.L. (2009), A Comparison of Analysis of Covariate-Adjusted Residuals and Analysis of Covariance, Communication in Statistics-Simulation and Computation, 38: 2019-2038.
Coker, K.A (2007), Ludvig’s Applied Process Design for Chemical and Petrochemical Plants Volume 1, 4th edition, Gulf professional Publishing, Burlington.
Huitema, B.E. (2011), The Analysis of Covariance and Alternative Statistical Methods for Experiments, Quasi-Experiments and Single-Case Studies, 2nd Edition, John Willey and Sons, INC. Publication, Hoboken, New Jersey.
Ibitoye, F.I (2014), Ending Natural Gas Flaring in Nigeria’s Oil Fields, Journal of Sustainable Development, 7(3): 10-22.
Ismail, O.S. and Umukoro, G.E. (2012), Global Impact of Gas Flaring, Energy and Power Engineering, 4: 290-302.
Jeffrey, S.K (2013), Beyond ANCOVA: A New Method for Excluding the Influence of Covariates in Comparing Group Means, ProStat Services, www.proststservices.com.
Mafimisebi, O.P and Ogbonna, C.O (2016), Environmental Risk of Gas Flaring in Nigeria: Lessons from Chevron Nigeria and Ilaje Crisis, Journal of Environmental and Earth Sciencies, 6(3): 180- 204.
Michael, H.K, Christopher, J.N., John, N., Willian, L. (2004), Applied Linear Statistical Models, 5th edition, McGraw-Hill Companies Inc., New York.
Montgomery, D C. (2013), Design and Analysis of Experiments, 8th edition, John Willey & Son Inc. New York, USA.
Omeire, E.U, Aveuya, A.A, Muoneme, O.T, Adolphus, G., Ufomba, A. and Omeire, C.A (2014), Between the Devil and the Deep Blue Sea: Niger Delta Women and the Burden of Gas Flaring, European Scientific Journal, 10(26): 151-162.
Udok, U. and Akpan, E.B (2017), Gas Flaring in Nigeria: Problems and Prospects, Global Journal of Politics and Law Research, 5(1): 16 -28.
Ujowundu, C.O, Nwaogu, L.A, Ujowundu, F.N and Belonwu, D.C (2013), Effects of Gas Flaring on the Phytochemical and Nutritional Composition of Treculia Africana and Vigna Subterranean. British Biotechnology Journal, 3(3): 293-304
Uyigue, L. and Enujekwu, F.M. (2017), Physiochemical Analysis of Gas Flaring Impact on the Environment of Host Communities in Niger-delta, Journal of Environment Pollution and Human Health, 5(1): 22-29.