LANCASTER

Oil // district 11 // lease#68392

op: WHITE ROCK OIL & GAS, LLC

cum_oil

1.9M BBL

cum_gas

0 MCF

wells

5

production

2002-01 — 2026-03

peak_month

2002-12

-- production_history

cum_oil: 1,884,215 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

71,209 BBL/mo

Di (annual)

162.4%

b-factor

0.7

EUR

1,446,847 BBL

R-squared

0.851

type

hyperbolic

-- wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3OCCIDENTAL PERMIAN LTD.37,5002010-12-06
3XOCCIDENTAL PERMIAN LTD.37,5002010-12-06
4DEVON SFS OPERATING, INC.17,5002002-07-31
2DEVON SFS OPERATING, INC.17,5002002-02-14
1DEVON SFS OPERATING, INC.17,5002001-11-08
EOF // data source: Texas Railroad Commission // 2026