WELLMAN WEST UNIT

Oil // district 11 // lease#64619

op: WHITE ROCK OIL & GAS, LLC

cum_oil

2.0M BBL

cum_gas

0 MCF

wells

45

production

1993-01 — 2026-03

peak_month

2003-05

-- production_history

cum_oil: 2,036,576 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

10,974 BBL/mo

Di (annual)

11.0%

b-factor

0.1

EUR

1,309,682 BBL

R-squared

0.971

type

hyperbolic

-- wells (45)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
18DEVON ENERGY PRODUCTION CO, L.P.25,7002005-10-19
24SANTA FE SNYDER CORPORATION55,7002005-06-09
24HSANTA FE SNYDER CORPORATION55,7002005-06-09
9HWDEVON ENERGY PRODUCTION CO, L.P.25,7002005-06-08
9WDEVON ENERGY PRODUCTION CO, L.P.25,7002005-06-08
21HWSANTA FE ENERGY CO.45,6502005-06-06
21WSANTA FE ENERGY CO.45,6502005-06-06
35SANTA FE SNYDER CORPORATION45,7002005-01-12
35HSANTA FE SNYDER CORPORATION45,7002005-01-12
5DEVON ENERGY PRODUCTION CO, L.P.25,7002004-09-24
5WDEVON ENERGY PRODUCTION CO, L.P.25,7002004-09-24
22HSANTA FE ENERGY CO.25,7002003-10-24
22HWSANTA FE ENERGY CO.25,7002003-10-24
22WSANTA FE ENERGY CO.25,7002003-10-24
11DEVON ENERGY PRODUCTION CO, L.P.15,5752003-09-04
11HWDEVON ENERGY PRODUCTION CO, L.P.15,5752003-09-04
15DEVON ENERGY PRODUCTION CO, L.P.25,6002003-09-03
15HWDEVON ENERGY PRODUCTION CO, L.P.25,6002003-09-03
33SANTA FE ENERGY RESOURCES, INC.35,7002003-06-24
33HSANTA FE ENERGY RESOURCES, INC.35,7002003-06-24
27SANTA FE SNYDER CORPORATION25,7002003-03-14
27HSANTA FE SNYDER CORPORATION25,7002003-03-14
31SANTA FE ENERGY RESOURCES, INC.25,7002003-03-06
31HSANTA FE ENERGY RESOURCES, INC.25,7002003-03-06
34SANTA FE SNYDER CORPORATION15,7002000-01-21
29SANTA FE ENERGY RESOURCES, INC.15,7001997-12-11
32SANTA FE ENERGY RESOURCES, INC.15,7001997-12-11
28SANTA FE ENERGY RESOURCES, INC.15,7001995-11-28
1SANTA FE ENERGY CO.12,5001983-08-30
8ADOBE OIL CO.15,6001977-08-08
10W42-445-10203--------
12W42-445-30316--------
1342-445-10219--------
1442-445-10246--------
1642-445-10207--------
1742-445-10239--------
19W42-445-10225--------
2042-445-10240--------
20W42-445-10240--------
2W42-445-10229--------
342-445-10227--------
4W42-445-30320--------
642-445-10222--------
6W42-445-10222--------
742-445-10216--------
EOF // data source: Texas Railroad Commission // 2026