The Delaware Basin represents our most significant area of capital investment and proved reserves growth for Concho. At December 31, 2013, proved reserves attributable to the Company’s Delaware Basin assets totaled approximately 138.1 million barrels of oil equivalent (“MMBoe”), accounting for 27% of our total proved reserves.
At December 31, 2013, we had identified approximately 10,600 drilling locations on our Delaware Basin assets, with proved undeveloped reserves attributable to 400 of such locations. These locations include approximately 6,000 targeting the Bone Spring sands, approximately 1,500 targeting the Avalon shale, approximately 2,000 targeting the Wolfcamp, approximately 850 targeting the Brushy Canyon, and the remaining targeting other objectives.
The Delaware Basin has advanced from an exploration play in 2010 to an asset that accounted for 40% of our total production in 2013. During 2013, we deployed $1 billion to the Delaware Basin, representing 63% of total capital spent. In order to continue delineating our acreage position and developing our 10,600 high rate-of-return drilling opportunities, we plan to spend approximately 70% of our 2014 drilling and completion budget of $2.3 billion in the Delaware Basin, drilling over 300 gross horizontal wells and targeting six unique zones.
We have continued to improve our results in the southern Delaware Basin, increasing our horizontal rig count to six at year-end 2013. As a result of this success, we identified more than 800 horizontal Wolfcamp and Bone Spring drilling locations. In 2014, we plan to deploy nearly 30% of our $1.6 billion Delaware Basin drilling and completion budget in the southern Delaware Basin by drilling approximately 50 gross horizontal wells.