SPARKS, T.E. B

Oil // district 11 // lease#66867

op: EXXON CORP.

cum_oil

109k BBL

cum_gas

0 MCF

wells

4

production

1993-01 — 1996-05

peak_month

1993-01

-- production_history

cum_oil: 108,567 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

5,877 BBL/mo

Di (annual)

145.1%

b-factor

1.9

EUR

504,847 BBL

R-squared

0.888

type

hyperbolic

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1WHITE ROCK OIL & GAS, LLC27,4002025-01-23
2WHITE ROCK OIL & GAS, LLC37,4002021-03-30
4OXY USA WTP LP27,4002014-02-26
3EXXON CORP.17,4001992-09-09
EOF // data source: Texas Railroad Commission // 2026