these wells. Most of this production is from the Cotton Valley formation between 8,600 and 10,150 feet and the Haynesville shale formation between 11,100 and 11,450 feet. 

## Mansfield 

The Mansfield field is located in DeSoto Parish, Louisiana and produces from the Haynesville shale between 12,250 and 12,350 feet. We own interests in 17 wells (4.6 net to us) and operate 4 of these wells. Our proved reserves in this field of 7.1 Bcfe represent approximately 1% of our total reserves. 

## Douglass 

The Douglass field is located in Nacogdoches County, Texas and is productive from stratigraphically trapped reservoirs in the Pettet Lime and Travis Peak formations. These reservoirs are found at depths from 9,200 to 10,300 feet. Our proved reserves of 3.6 Bcfe in the Douglass field represent less than 1% of our reserves. We own interests in 40 wells (25.8 net to us) and operate 33 of these wells. 

## Darco 

The Darco field is located in Harrison County, Texas and produces from the Cotton Valley formation at depths from approximately 9,800 to 10,200 feet. Our proved reserves of 2.8 Bcfe in the Darco field represent less than 1% of our reserves. We own interests in 23 wells (18 net to us) and operate all of these wells. 

## South Texas Region 

Approximately 39%, or 37.9 MMBOE (227.6 Bcfe), of our proved reserves are located in South Texas, where we own interests in 240 producing wells (151.7 net to us). We own interests in 13 field areas in the region, the largest of which are the Eagleville, Fandango, Rosita, Javelina, Las Hermanitas and Lopeno fields. Net daily production rates from this region averaged 6,110 barrels of oil and 20 MMcf of natural gas during 2013 or 9,388 BOE per day. We spent $325.0 million in 2013 to drill 75 oil wells (51.6 net to us) targeting the Eagle Ford shale and for other development activity. We also spent $77.2 million in this region in 2013 to acquire acreage, including $67.4 million for 33,624 acres (21,034 net to us) in or near Burleson County, Texas which are prospective in the Eagle Ford shale formation. We plan to spend approximately $264.0 million in 2014 to drill 59 horizontal wells (40.2 net to us) in our Eagleville field, $50.0 million to drill ten wells (5.6 net to us) in our newly acquired Eagle Ford shale acreage, $80.0 million to complete 18 Eagleville wells (13.3 net to us) that were drilled in 2013 and $25.0 million on facilities, recompletions and other capital projects. 

## Eagleville 

We have 31,755 acres (25,316 net to us) in McMullen, Atascosa, Frio, La Salle, Karnes and Wilson Counties which comprise our Eagleville field. The Eagle Ford shale is found between 7,500 feet and 11,500 feet across our acreage position. At December 31, 2013 we had 101 wells (74.6 net to us) producing in the Eagleville field. Our proved reserves in this field are estimated to be 24.4 MMBOE (146.6 Bcfe) (87% oil) and represent 25% of our total proved reserves. We plan to spend approximately $264.0 million in 2014 to drill 59 horizontal wells (40.2 net to us) and $80.0 million to complete wells that were drilled in 2013 in the Eagleville field. 

