Changes

Gas production reached its highest level to date in 2012, with an average of 5,743 Million Cubic Feet (MMCF) of gas per day, during 2014 production averaged 4,920 MMCF/day.    The field also produced oil and condensate at an average rate of 3,207 and 15,757 bbls/day respectively in 2014.  Latest production statistics are available from the Texas Railroad Commission. 1   

Gas production reached its highest level to date in 2012, with an average of 5,743 Million Cubic Feet (MMCF) of gas per day, during 2014 production averaged 4,920 MMCF/day.    The field also produced oil and condensate at an average rate of 3,207 and 15,757 bbls/day respectively in 2014.  Latest production statistics are available from the Texas Railroad Commission. 1   

In 2013, Browning, et. al., reported on work underway with the Bureau of Economic Geology aimed at determining ultimate production for the Barnett Shale.  At that time the Barnett had produced over 12.5 TCF of natural gas, with ultimate production in the range 45 TCF estimated.     

In 2013, Browning, et. al.,<ref>Browning, J. R., S. Ikonnikova, G. Gulen, E. Potter, K. Medlock, F. Male, S. Horvath, T. Patzek, Q. Fu, F. Roberts, and S. Tinker, 2013, Barnett Gas Production Outlook,  Search and Discovery Article #10541 .</ref><ref>Browning, J., S. W. Tinker, S. Ikonnikova, G. Gülen, E. Potter, Q. Fu, S. Horvath, T. Patzek, F. Male, W. Fisher, & F. Roberts, 2013, Barnett shale model-2 (Conclusion): Barnett study determines full-field reserves, production forecast: Oil & Gas Journal</ref> reported on work underway with the Bureau of Economic Geology aimed at determining ultimate production for the Barnett Shale.  At that time the Barnett had produced over 12.5 TCF of natural gas, with ultimate production in the range 45 TCF estimated.     

==Significance==

==Significance==

As of 2009 the Barnett (Newark East field) was the largest gas field in the U.S. by proven reserves .   However by 2015, in an update by the EIA , it was ranked number 2 having been surpassed, by another shale play, the Marcellus Shale in Pennsylvania and West Virginia.   Perhaps more importantly however, the success of developing the Barnett Shale has opened the door for success not only the Marcellus but  also in other gas plays in the United States such as the Woodford, Fayetteville and Haynesville and others.

As of 2009 the Barnett (Newark East field) was the largest gas field in the U.S. by proven reserves.<ref>Energy Information Agency, 2009, [http://www.eia.gov/oil_gas/rpd/topfields.pdf Top 100 Oil and Gas Fields By 2009 Proved Reserves]</ref> However by 2015, in an update by the EIA, it was ranked number 2 having been surpassed, by another shale play, the Marcellus Shale in Pennsylvania and West Virginia.<ref>Energy Information Agency, 2015, [http://www.eia.gov/naturalgas/crudeoilreserves/top100/pdf/top100.pdf Top US Oil and Gas Fields March 2015]</ref> Perhaps more importantly however, the success of developing the Barnett Shale has opened the door for success not only the Marcellus but  also in other gas plays in the United States such as the Woodford, Fayetteville and Haynesville and others.

==References==

==References==

* Pollastro, R. M., D. M. Jarvie, R. J. Hill, & C. W. Adams, 2007, [http://archives.datapages.com/data/bulletns/2007/04apr/BLTN06008/BLTN06008.HTM Geologic framework of the Mississippian Barnett Shale, Barnett-Paleozoic total petroleum system, Bend arch--Fort Worth Basin, Texas]: AAPG Bulletin, v. 91, no. 4, pp. 405-436.

* Pollastro, R. M., D. M. Jarvie, R. J. Hill, & C. W. Adams, 2007, [http://archives.datapages.com/data/bulletns/2007/04apr/BLTN06008/BLTN06008.HTM Geologic framework of the Mississippian Barnett Shale, Barnett-Paleozoic total petroleum system, Bend arch--Fort Worth Basin, Texas]: AAPG Bulletin, v. 91, no. 4, pp. 405-436.

* Singh, P., R. Slatt, & W. Coffey, 2008, GCAGS transactions.

* Singh, P., R. Slatt, & W. Coffey, 2008, GCAGS transactions.