UNDERWOOD -C-

Oil // district 10 // lease#25381

op: SUNRAY ENERGY, INC.

cum_oil

332k BBL

cum_gas

0 MCF

wells

7

production

1993-01 — 2026-03

peak_month

2017-12

-- production_history

cum_oil: 331,671 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

11,806 BBL/mo

Di (annual)

188.4%

b-factor

0.9

EUR

293,525 BBL

R-squared

0.824

type

hyperbolic

-- wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3HRING ENERGY, INC.15,1002017-09-08
2HRING ENERGY, INC.15,1002017-06-28
1HRING ENERGY, INC.14,8002017-02-03
4RING ENERGY, INC.15,1002014-05-08
5RING ENERGY, INC.15,1002014-05-08
3WALKER, CHAS. L.14,7601979-12-19
2WALKER, CHAS. L.14,8001979-01-17
EOF // multi-state drilling data platform // 2026