Our SEC proved developed reserves for the year ended December 31, 2016 were estimated at 129.4 Bcfe, compared to 157.2 Bcfe in the prior year. The decline in proved developed reserves can be attributed primarily to: approximately 26.0 Bcfe of production during the year; negative revisions of 3.2 Bcfe related to the reduction in the estimated economic life of certain properties due to the decrease in commodity prices; and sold reserves of 1.6 Bcfe in Colorado, partially offset by positive revisions of 2.9 Bcfe related to performance revisions and extensions.Our SEC proved undeveloped reserves ("PUD") for the year ended December 31, 2016 were 22.4 Bcfe, compared to 30 Bcfe at December 31, 2015. The decrease in PUD reserves can be attributed primarily to negative revisions of 5.1 Bcfe related to the decrease in commodity prices and 2.5 Bcfe related to the sale of reserves in Colorado. The above estimates do not include net proved reserves of approximately 32.6 Bcfe and 38.7 Bcfe attributable to our 37% equity ownership interest in Exaro Energy III LLC ("Exaro") as of December 31, 2016 and 2015, respectively. The SEC PV-10 value of the proved reserves attributable to our 37% interest in Exaro was approximately $20 million at December 31, 2016, compared to the PV-10 value of $31 million as of December 31, 2015. Fourth Quarter Production Production for the quarter ended December 31, 2016 was approximately 5.9 Bcfe, or 64.3 Mmcfed, within guidance for the quarter. Current quarter production was less than the 8.0 Bcfe, or 87 Mmcfed, for the same period last year due to the reduced 2015 and 2016 capital expenditure programs and a 1.6 Mmcfed impact on the 2016 quarter from the shut-in of two wells in our conventional Liberty County area for workovers. Production for the current quarter was approximately 71% natural gas and 29% oil and natural gas liquids compared to the prior year quarter of 68% natural gas and 32% crude oil and natural gas liquids. Natural gas production for the quarter is preliminarily estimated at approximately 45.8 Mmcfd compared to 59.3 Mmcfd for the prior year quarter, and crude oil and natural gas liquids production during the current period is preliminarily estimated at 1,380 and 1,700 barrels per day, respectively, compared to 2,100 and 2,475 barrels per day, respectively for the same quarter last year. We currently estimate first quarter 2017 production to be between 57.4 and 62.4 Mmcfed, negatively impacted by an estimated 1.5 Mmcfed for the quarter because of the loss of compression at Eugene Island 11 for an estimated 24 days.
LiquidityAs of December 31, 2016, we had approximately $54.4 million of debt outstanding under our credit facility, a 13% decrease from the third quarter outstanding balance and a 53% decrease from the year-end 2015 outstanding balance. Effective October 28, 2016, our $140 million borrowing base under our facility was reaffirmed through May 1, 2017. Contango Oil & Gas Company is a Houston, Texas based, independent energy company engaged in the acquisition, exploration, development, exploitation and production of crude oil and natural gas offshore in the shallow waters of the Gulf of Mexico and in the onshore Texas Gulf Coast and Rocky Mountain regions of the United States. Additional information is available on the Company's website at http://contango.com. This press release contains forward-looking statements regarding Contango that are intended to be covered by the safe harbor "forward-looking statements" provided by the Private Securities Litigation Reform Act of 1995, based on Contango's current expectations and includes statements regarding acquisitions and divestitures, estimates of future production, future results of operations, quality and nature of the asset base, the assumptions upon which estimates are based and other expectations, beliefs, plans, objectives, assumptions, strategies or statements about future events or performance (often, but not always, using words such as "expects", "projects", "anticipates", "plans", "estimates", "potential", "possible", "probable", or "intends", or stating that certain actions, events or results "may", "will", "should", or "could" be taken, occur or be achieved). Statements concerning oil and gas reserves also may be deemed to be forward looking statements in that they reflect estimates based on certain assumptions that the resources involved can be economically exploited. Forward-looking statements are based on current expectations, estimates and projections that involve a number of risks and uncertainties, which could cause actual results to differ materially from those, reflected in the statements. These risks include, but are not limited to: the risks of the oil and gas industry (for example, operational risks in exploring for, developing and producing crude oil and natural gas; risks and uncertainties involving geology of oil and gas deposits; the uncertainty of reserve estimates; the uncertainty of estimates and projections relating to future production, costs and expenses; potential delays or changes in plans with respect to exploration or development projects or capital expenditures; health, safety and environmental risks and risks related to weather such as hurricanes and other natural disasters); uncertainties as to the availability and cost of financing; fluctuations in oil and gas prices; risks associated with derivative positions; inability to realize expected value from acquisitions, inability of our management team to execute its plans to meet its goals, shortages of drilling equipment, oil field personnel and services, unavailability of gathering systems, pipelines and processing facilities and the possibility that government policies may change or governmental approvals may be delayed or withheld. Additional information on these and other factors which could affect Contango's operations or financial results are included in Contango's other reports on file with the Securities and Exchange Commission. Investors are cautioned that any forward-looking statements are not guarantees of future performance and actual results or developments may differ materially from the projections in the forward-looking statements. Forward-looking statements are based on the estimates and opinions of management at the time the statements are made. Contango does not assume any obligation to update forward-looking statements should circumstances or management's estimates or opinions change. Initial production rates are subject to decline over time and should not be regarded as reflective of sustained production levels.
Contact:Contango Oil & Gas CompanyE. Joseph Grady - 713-236-7400Senior Vice President and Chief Financial OfficerSergio Castro - 713-236-7400Vice President and Treasurer