FOSTER, W. L., JR. -B-

Oil // district 10 // lease#10101

op: XOG OPERATING LLC

cum_oil

123k BBL

cum_gas

0 MCF

wells

14

production

1993-01 — 2026-03

peak_month

1993-01

-- production_history

cum_oil: 123,004 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,322 BBL/mo

Di (annual)

13.5%

b-factor

0.0

EUR

117,537 BBL

R-squared

0.711

type

exponential

-- wells (14)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8POWELL, A. BRANDT CO.12,3202001-04-04
8RPOWELL, A. BRANDT CO.12,3202001-04-04
18 LUNION OIL COMPANY OF CALIFORNIA23,2001989-02-17
19 LUNION OIL COMPANY OF CALIFORNIA23,2001988-12-22
21UNION OIL COMPANY OF CALIFORNIA13,0001987-05-19
21 LUNION OIL COMPANY OF CALIFORNIA13,0001987-05-19
22 LUNION OIL COMPANY OF CALIFORNIA13,0001987-05-19
20 LUNION OIL COMPANY OF CALIFORNIA13,2001986-09-29
17UNION OIL COMPANY OF CALIFORNIA13,2001985-10-24
1042-431-00525--------
1142-431-00526--------
1242-431-00527--------
642-431-00521--------
942-431-00524--------
EOF // multi-state drilling data platform // 2026