GIBSON "B"

Oil // district 3 // lease#23837

op: TEXAS STANDARD OIL OPERATING CO.

fields: LOCHRIDGE

cum_oil

237k BBL

cum_gas

0 MCF

wells

4

production

2000-05 — 2026-03

peak_month

2000-06

-- production_history

cum_oil: 236,533 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,873 BBL/mo

Di (annual)

32.5%

b-factor

0.3

EUR

201,212 BBL

R-squared

0.734

type

hyperbolic

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11K. O. C. CORPORATION17,5002005-06-02
9K. O. C. CORPORATION17,5002000-11-28
10K. O. C. CORPORATION23,4002000-10-19
8K. O. C. CORPORATION17,5002000-04-14
EOF // data source: Texas Railroad Commission // 2026