HENDERSON, M. F.

Oil // district 10 // lease#34609

op: STRONGHOLD ENERGY II OPER, LLC

cum_oil

1.1M BBL

cum_gas

0 MCF

wells

12

production

1995-08 — 2026-03

peak_month

2002-11

-- production_history

cum_oil: 1,080,253 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

5,680 BBL/mo

Di (annual)

6.0%

b-factor

0.0

EUR

1,083,403 BBL

R-squared

0.505

type

exponential

-- wells (12)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
176RING ENERGY, INC.811,0002025-01-24
176HRING ENERGY, INC.811,0002025-01-24
176HSRING ENERGY, INC.811,0002025-01-24
0401SSTRONGHOLD ENERGY II OPER, LLC48,5002025-01-23
188RING ENERGY, INC.410,5002025-01-23
192RING ENERGY, INC.510,1002024-06-06
192HRING ENERGY, INC.510,1002024-06-06
0501SSTRONGHOLD ENERGY II OPER, LLC110,0002021-05-07
187STRONGHOLD ENERGY II OPER, LLC310,0002019-08-21
189DEVON ENERGY PRODUCTION CO, L.P.410,0002006-02-21
54HDEVON ENERGY PRODUCTION CO, L.P.28,0002003-04-21
191DEVON ENERGY PRODUCTION CO, L.P.48,0002002-08-26
EOF // data source: Texas Railroad Commission // 2026