RATLIFF, SALLIE W.

Oil · District 08 · Lease #9963

Operator: SLANT OPERATING, LLC

Cum Oil

405k BBL

Cum Gas

3.5M MCF

casinghead

Wells

11

Production

1993-01 — 2026-04

Peak Month

1997-07

Production History

Cum Oil: 404,985 BBL Cum Gas: 3,473,255 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,127 BBL/mo

Di (annual)

9.5%

b-factor

0.0

EUR

392,475 BBL

R-squared

0.376

type

exponential

Operator History (from monthly production reports)

2023-07 — 2026-07 SLANT OPERATING, LLC 37 mo
1996-02 — 2023-06 EUREKA PROSPECTING COMPANY 329 mo
1993-01 — 1996-01 MOBIL PRODUCING TX. & N.M. INC. 37 mo

Wells (11)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4SLANT OPERATING, LLC613,7502025-04-16
4XSLANT OPERATING, LLC613,7502025-04-16
7SLANT OPERATING, LLC112,2972024-05-30
1RSLANT OPERATING, LLC313,8502021-09-07
12SLANT OPERATING, LLC213,8002017-05-02
6SLANT OPERATING, LLC214,0002003-08-29
5SLANT OPERATING, LLC113,8002000-05-05
8SLANT OPERATING, LLC112,3661996-06-07
11SLANT OPERATING, LLC212,5001990-11-01
9SLANT OPERATING, LLC111,9801990-10-17
10SLANT OPERATING, LLC112,5001981-04-17