ANDREWS UNIVERSITY 21

Oil · District 08 · Lease #38731

Operator: WILLIAMS, CLAYTON ENERGY, INC.

Cum Oil

518k BBL

Cum Gas

1.5M MCF

casinghead

Wells

12

Production

2008-02 — 2026-04

Peak Month

2012-10

Production History

Cum Oil: 518,314 BBL Cum Gas: 1,527,404 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

12,788 BBL/mo

Di (annual)

43.9%

b-factor

0.2

EUR

436,195 BBL

R-squared

0.927

type

hyperbolic

Operator History (from monthly production reports)

2024-06 — 2026-07 SABALO II OPERATING, LLC 26 mo
2021-09 — 2024-05 MONTROSE OPERATING LLC 33 mo
2017-10 — 2021-08 THRONE PETROLEUM RESOURCES LLC 47 mo
2017-04 — 2017-09 NBL PERMIAN LLC 6 mo
2008-02 — 2017-03 WILLIAMS, CLAYTON ENERGY, INC. 110 mo

Wells (12)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11SABALO II OPERATING, LLC111,5002011-02-23
7SABALO II OPERATING, LLC111,7002010-08-24
10SABALO II OPERATING, LLC212,0002010-06-23
12SABALO II OPERATING, LLC212,0002010-06-23
6SABALO II OPERATING, LLC211,5002010-06-17
5SABALO II OPERATING, LLC211,5002010-06-14
3SABALO II OPERATING, LLC211,5002010-06-11
9SABALO II OPERATING, LLC212,0002010-05-18
8SABALO II OPERATING, LLC212,0002010-03-17
2SABALO II OPERATING, LLC111,5002009-06-08
4SABALO II OPERATING, LLC111,5002009-06-08
1SABALO II OPERATING, LLC212,0002008-02-25