SPECK 1

Oil · District 08 · Lease #42004

Operator: ELEMENT PETRO OPERATING II, LLC

Cum Oil

120k BBL

Cum Gas

66k MCF

casinghead

Wells

2

Production

2011-10 — 2026-04

Peak Month

2012-10

Production History

Cum Oil: 119,826 BBL Cum Gas: 65,920 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,121 BBL/mo

Di (annual)

133.7%

b-factor

0.7

EUR

99,826 BBL

R-squared

0.765

type

hyperbolic

Operator History (from monthly production reports)

2013-10 — 2026-07 DIAMONDBACK E&P LLC 154 mo
2011-10 — 2013-09 ELEMENT PETRO OPERATING II, LLC 24 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2DIAMONDBACK E&P LLC112,0002012-04-09
1DIAMONDBACK E&P LLC312,0002011-05-26