GRAY, COLUMBUS

Oil // district 10 // lease#36975

op: VAQUERO PERMIAN, LLC

cum_oil

391k BBL

cum_gas

0 MCF

wells

5

production

2002-09 — 2026-03

peak_month

2003-04

-- production_history

cum_oil: 390,821 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

7,759 BBL/mo

Di (annual)

93.7%

b-factor

1.0

EUR

384,296 BBL

R-squared

0.914

type

hyperbolic

-- wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2135QUANTUM RESOURCES MANAGEMENT,LLC29,5352014-03-28
2206ENCORE OPERATING, L.P.29,5002008-02-15
1907ENCORE OPERATING, L.P.29,5002003-06-19
2106ENCORE OPERATING, L.P.19,5002002-12-11
1901EENCORE OPERATING, L.P.19,9002002-08-05
EOF // data source: Texas Railroad Commission // 2026