FOSTER, R. W. -23-

Oil // district 10 // lease#8559

op: XOG OPERATING LLC

cum_oil

13k BBL

cum_gas

0 MCF

wells

7

production

1993-01 — 2026-03

peak_month

1993-03

-- production_history

cum_oil: 13,401 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

204 BBL/mo

Di (annual)

49.5%

b-factor

0.5

EUR

9,157 BBL

R-squared

0.533

type

hyperbolic

-- wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
19WAMERICAN PETROFINA CO. OF TEX.11,2001985-03-19
18WAMERICAN PETROFINA CO. OF TEX.11,2001985-03-15
1142-431-00104--------
1442-431-10309--------
1642-431-30053--------
742-431-00092--------
942-431-00102--------
EOF // multi-state drilling data platform // 2026