GEORGE

Oil // district 8 // lease#28387

op: ROBERTSON RESOURCES, INC.

cum_oil

9k BBL

cum_gas

0 MCF

wells

1

production

1997-12 — 2025-04

peak_month

1997-12

-- production_history

cum_oil: 9,115 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,176 BBL/mo

Di (annual)

209.4%

b-factor

0.2

EUR

8,414 BBL

R-squared

0.826

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SINCLAIR OIL CORPORATION27,0001997-08-27
EOF // data source: Texas Railroad Commission // 2026