| | OPERATING AREAS | | South Texas | | | Proved Reserves @ 12/31/12 | 55.8 Bcfe | | % Natural Gas | 64% | | Average WI | 54% | | Productive Wells (gross/net) | 272 / 145.6 | | Developed Acreage (gross/net) | 84,187 / 42,930 | | Undeveloped Acreage (gross/net) | 13,682 / 8,043 | | | | | |  | | | | | Q1 2013 Average Daily Production (Mcfe) | 13,890 | | | | | | | | Key Operated Field(s): | | | SW Speaks, Cage Ranch, North Bob West, Fashing, Zavala, Leona River, Escobas, Gimme Putt, Magnet Withers | | | | | | | | Target Formation(s): | | | Eagle Ford, Buda, Lower and Middle Wilcox, Frio-Vicksburg |
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