BIRGE

Oil // district 11 // lease#69530

op: GEOMARK RESOURCES, L.L.C.

cum_oil

96k BBL

cum_gas

0 MCF

wells

5

production

2009-11 — 2026-03

peak_month

2012-09

-- production_history

cum_oil: 96,043 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,176 BBL/mo

Di (annual)

25.3%

b-factor

0.0

EUR

55,711 BBL

R-squared

0.574

type

exponential

-- wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5GEOMARK RESOURCES, L.L.C.111,1252013-07-30
2RGEOMARK RESOURCES, L.L.C.311,2002013-03-15
2WIGEOMARK RESOURCES, L.L.C.311,2002013-03-15
4YOUNG, MARSHALL R., OIL COMPANY311,2002012-05-25
1LGEOMARK RESOURCES, L.L.C.211,5002009-06-23
EOF // data source: Texas Railroad Commission // 2026