STULGIS A

Oil · District 02 · Lease #10708

Operator: GEOSOUTHERN ENERGY CORPORATION

Cum Oil

3.0M BBL

Cum Gas

6.4M MCF

casinghead

Wells

13

Production

2013-06 — 2026-04

Peak Month

2025-08

Production History

Cum Oil: 3,030,913 BBL Cum Gas: 6,361,931 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

176,900 BBL/mo

Di (annual)

663.4%

b-factor

1.1

EUR

2,280,334 BBL

R-squared

0.990

type

hyperbolic

Operator History (from monthly production reports)

2014-03 — 2026-07 DEVON ENERGY PRODUCTION CO, L.P. 149 mo
2013-06 — 2014-02 GEOSOUTHERN ENERGY CORPORATION 9 mo

Wells (13)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11HDEVON ENERGY PRODUCTION CO, L.P.214,0002024-07-16
12HDEVON ENERGY PRODUCTION CO, L.P.214,0002024-07-16
13HDEVON ENERGY PRODUCTION CO, L.P.214,0002024-07-16
14HDEVON ENERGY PRODUCTION CO, L.P.214,0002024-07-16
10HDEVON ENERGY PRODUCTION CO, L.P.114,0002013-03-11
6HDEVON ENERGY PRODUCTION CO, L.P.114,0002013-03-08
7HDEVON ENERGY PRODUCTION CO, L.P.114,0002013-03-08
8HDEVON ENERGY PRODUCTION CO, L.P.114,0002013-03-08
9HDEVON ENERGY PRODUCTION CO, L.P.114,0002013-03-08
2HDEVON ENERGY PRODUCTION CO, L.P.114,0002013-03-07
3HDEVON ENERGY PRODUCTION CO, L.P.114,0002013-03-07
4HDEVON ENERGY PRODUCTION CO, L.P.114,0002013-03-07
5HDEVON ENERGY PRODUCTION CO, L.P.114,0002013-03-07