WILLIS "44"

Oil · District 08 · Lease #37065

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

421k BBL

Cum Gas

2.0M MCF

casinghead

Wells

8

Production

2003-02 — 2026-04

Peak Month

2005-04

Production History

Cum Oil: 420,742 BBL Cum Gas: 1,964,904 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,185 BBL/mo

Di (annual)

16.8%

b-factor

0.0

EUR

370,920 BBL

R-squared

0.576

type

exponential

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2003-02 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 263 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8DIAMONDBACK E&P LLC212,0002017-03-10
2DIAMONDBACK E&P LLC212,0002017-03-09
3DIAMONDBACK E&P LLC212,0002017-03-09
4DIAMONDBACK E&P LLC212,0002017-03-09
6DIAMONDBACK E&P LLC413,0002017-03-09
7DIAMONDBACK E&P LLC212,0002017-03-09
1DIAMONDBACK E&P LLC112,0002003-05-16
5DIAMONDBACK E&P LLC212,0002002-07-31