We are a Fort Worth, Texas-based independent oil and gas company engaged in the development and production of natural gas, natural gas liquids (NGLs) and crude oil. We have a high-quality asset base which is focused on growth through the drill-bit by finding and developing, long-lived unconventional natural gas and oil reservoirs at a low cost. We have U.S. offices in Fort Worth, Texas and Glen Rose, Texas. Our Canadian subsidiary, Quicksilver Resources Canada Inc., is located in Calgary, Alberta. Quicksilver Resources Inc. common shares are traded on the New York Stock Exchange under the ticker symbol "KWK".
We focus on development of unconventional reservoirs. Our primary producing areas are the Barnett Shale in the Fort Worth Basin, the Horn River Basin in northeast British Columbia, and the coalbeds of the Horseshoe Canyon in Alberta.
In the Barnett, our proved reserves are approximately 1.1 Tcfe as of year-end 2013. We have approximately 135,000 gross acres, or 85,000 net acres. Average production was 169 MMcfe per day from the Barnett Shale in 2013 on a pro forma basis. We have partnerships with Tokyo Gas and Eni.
In the Horn River, proved reserves are approximately 70 Bcf as of year-end 2013. We have 130,000 net acres in this play, of which virtually all is leased under a 10-year term. Average production was 57 MMcfe per day in 2013 from the Horn River. In 2013, we acquired a site in Campbell River, British Columbia which we believe is an ideal location for an LNG export facility.
The Horseshoe Canyon is characterized by slow decline coalbeds. Proved reserves are approximately 196 Bcfe as of year-end 2013. We have 353,000 net acres in this play. Average production was 50 MMCfed in 2013 from Horseshoe Canyon.
We have exploration opportunities in our West Texas asset located in the Delaware and Midland basins which we believe is prospective of oil from the Wolfcamp and Bone Springs formations. With our joint venture partners, we are focused on approximately 60,000 acres in Pecos County and 30,000 acres in Crockett and Upton counties comprising a total of 90,000-gross acres where Quicksilver's interest in up to 10 wells across our West Texas asset is expected to be fully carried by our partners.