GRIFFIN RANCH OU B

Oil // district 6 // lease#14002

op: SAMSON LONE STAR LP

cum_oil

80k BBL

cum_gas

0 MCF

wells

2

production

2000-02 — 2008-06

peak_month

2002-10

-- production_history

cum_oil: 79,871 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,044 BBL/mo

Di (annual)

52.6%

b-factor

0.0

EUR

69,411 BBL

R-squared

0.804

type

exponential

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1MASS ENERGY, INC19,1001998-04-13
3MASS ENERGY, INC19,1001998-04-13
EOF // data source: Texas Railroad Commission // 2026