SEMILLON

Oil · District 08 · Lease #40266

Operator: W&T OFFSHORE, INC.

Cum Oil

67k BBL

Cum Gas

72k MCF

casinghead

Wells

2

Production

2010-06 — 2024-05

Peak Month

2011-07

Production History

Cum Oil: 66,608 BBL Cum Gas: 72,313 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,026 BBL/mo

Di (annual)

69.0%

b-factor

0.4

EUR

57,673 BBL

R-squared

0.572

type

hyperbolic

Operator History (from monthly production reports)

2018-11 — 2026-07 DIAMONDBACK E&P LLC 93 mo
2015-01 — 2018-10 AJAX RESOURCES, LLC 46 mo
2011-05 — 2014-12 W&T OFFSHORE, INC. 44 mo
2010-06 — 2011-04 OPAL RESOURCES OPERATING CO.,LLC 11 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC412,5002013-11-13
2XDIAMONDBACK E&P LLC212,0002010-10-27