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TREES ESTATE -77-

Oil · District 08 · Lease #20803

Operator: WHITEHORSE DELAWARE OP LLC

Fields: ATHEY (WOLFCAMP 10900)

Cum Oil

84k BBL

Cum Gas

385k MCF

casinghead

Wells

2

Production

1993-01 — 2018-02

Peak Month

1997-05

Production History

Cum Oil: 83,747 BBL Cum Gas: 385,451 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

647 BBL/mo

Di (annual)

53.6%

b-factor

0.3

EUR

20,475 BBL

R-squared

0.464

type

hyperbolic

Operator History (from monthly production reports)

2017-12 — 2020-05 ROSEHILL OPERATING COMPANY, LLC 30 mo
2016-11 — 2017-11 WHITEHORSE DELAWARE OP LLC 13 mo
2002-07 — 2016-10 JETTA OPERATING COMPANY, INC. 172 mo
2000-04 — 2002-06 DEVON ENERGY PRODUCTION CO, L.P. 27 mo
1993-01 — 2000-03 DEVON ENERGY CORPORATION(NEVADA) 87 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
242-371-32667SWORDFISH ENERGY OPERATING, LLC212,0002019-05-17
1 U42-371-10961SWORDFISH ENERGY OPERATING, LLC111,9352019-05-15