CREWS, S.E.-MAST -8-

Oil // district 10 // lease#45165

op: VIN FISHER OPERATING, INC.

cum_oil

168k BBL

cum_gas

0 MCF

wells

6

production

2014-07 — 2026-03

peak_month

2014-12

-- production_history

cum_oil: 167,712 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,857 BBL/mo

Di (annual)

16.3%

b-factor

0.0

EUR

136,238 BBL

R-squared

0.369

type

exponential

-- wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5RING ENERGY, INC.36,7502015-04-28
2RING ENERGY, INC.26,2002014-07-21
3RING ENERGY, INC.15,1002014-06-07
4RING ENERGY, INC.15,1002014-06-07
6RING ENERGY, INC.15,1002014-06-07
7RING ENERGY, INC.15,1002014-06-07
EOF // multi-state drilling data platform // 2026