CALVERLEY, J. B. -A-

Oil // district 10 // lease#6392

op: VENCER ENERGY, LLC

cum_oil

334k BBL

cum_gas

0 MCF

wells

8

production

1993-01 — 2026-03

peak_month

2014-07

-- production_history

cum_oil: 333,873 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,768 BBL/mo

Di (annual)

93.3%

b-factor

0.6

EUR

79,584 BBL

R-squared

0.722

type

hyperbolic

-- wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8HUNT OIL COMPANY211,5002014-06-14
7HUNT OIL COMPANY211,5002014-05-06
6MERIT ENERGY COMPANY110,5002008-07-25
5CONCHO RESOURCES INC.18,5501999-09-17
4HANLEY PETROLEUM INC.18,6001993-09-16
142-173-00615--------
242-173-00397--------
342-173-00399--------
EOF // data source: Texas Railroad Commission // 2026