SLAUGHTER, ELMA L., -G-

Oil · District 08 · Lease #20911

Operator: SCYTHIAN, LTD.

Fields: SULPHUR DRAW (DEAN 8790)

Cum Oil

319k BBL

Cum Gas

1.2M MCF

casinghead

Wells

6

Production

1993-01 — 2026-03

Peak Month

1993-07

Production History

Cum Oil: 318,596 BBL Cum Gas: 1,172,042 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,010 BBL/mo

Di (annual)

7.2%

b-factor

0.0

EUR

327,140 BBL

R-squared

0.798

type

exponential

Operator History (from monthly production reports)

2023-06 — 2026-07 OVINTIV USA INC. 38 mo

2017-06 — 2023-05 PETROLEGACY ENERGY II, LLC 72 mo

2006-05 — 2017-05 PIONEER NATURAL RES. USA, INC. 133 mo

2000-04 — 2006-04 SCYTHIAN, LTD. 73 mo

1993-01 — 2000-03 HUNT OIL COMPANY 87 mo

Wells (6)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
5	42-317-33553	OVINTIV USA INC.	3	9,450	1988-08-24
6	42-317-33438	OVINTIV USA INC.	1	9,450	1987-05-11
3	42-317-31952	OVINTIV USA INC.	1	9,700	1977-10-20
2	42-317-31941	OVINTIV USA INC.	1	9,700	1977-09-30
4	42-317-31942	OVINTIV USA INC.	1	9,700	1977-09-30
1	42-317-10305	OVINTIV USA INC.	--	--	--