CREWS-MAST -9-

Oil // district 10 // lease#28272

op: VIN FISHER OPERATING, INC.

cum_oil

105k BBL

cum_gas

0 MCF

wells

10

production

1993-01 — 2026-03

peak_month

2015-02

-- production_history

cum_oil: 104,973 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

762 BBL/mo

Di (annual)

29.5%

b-factor

0.0

EUR

30,964 BBL

R-squared

0.304

type

exponential

-- wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11RING ENERGY, INC.15,1002014-09-30
10RING ENERGY, INC.15,1002014-08-19
9RING ENERGY, INC.15,1002014-08-19
5RING ENERGY, INC.15,1002014-07-25
7RING ENERGY, INC.15,1002014-07-25
8RING ENERGY, INC.15,1002014-07-25
2W & W OIL COMPANY M14,9001983-09-19
3W & W OIL COMPANY M14,9001983-09-19
4W & W OIL COMPANY M14,9001983-09-19
1W & W OIL COMPANY M14,8001983-04-27
EOF // multi-state drilling data platform // 2026