CALVIN-STARNES UNIT

Oil · District 8A · Lease #64676

Operator: VISION OIL AND GAS LLC

Fields: LEVELLAND

Cum Oil

1.5M BBL

Cum Gas

1.6M MCF

casinghead

Wells

131

Production

1993-01 — 2026-03

Peak Month

1994-07

Production History

Cum Oil: 1,486,894 BBL Cum Gas: 1,570,280 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

12,480 BBL/mo

Di (annual)

9.6%

b-factor

0.0

EUR

1,542,788 BBL

R-squared

0.873

type

exponential

Operator History (from monthly production reports)

2024-09 — 2026-07 VISION OIL AND GAS LLC 23 mo

2019-06 — 2024-08 DP PERMIAN OPERATOR, LLC 63 mo

2019-02 — 2019-05 EXTEX OPERATING COMPANY 4 mo

2018-04 — 2019-01 ENERGY HUNTER RESOURCES, INC. 10 mo

2017-06 — 2018-03 EXTEX OPERATING COMPANY 10 mo

2000-09 — 2017-05 ENDEAVOR ENERGY RESOURCES L.P. 201 mo

1996-05 — 2000-08 STEPHENS, AUTRY C. 52 mo

1993-01 — 1996-04 BHP PETROLEUM (AMERICAS) INC. 40 mo

Wells (131)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
4014	42-079-31108	VISION OIL AND GAS LLC	2	5,200	2023-01-11
3513	42-079-30990	VISION OIL AND GAS LLC	2	5,200	2022-05-20
4704	42-079-32026	VISION OIL AND GAS LLC	1	5,100	1984-09-11
E 11	42-079-31972	VISION OIL AND GAS LLC	1	5,100	1984-05-25
E 12	42-079-31973	VISION OIL AND GAS LLC	1	5,100	1984-05-25
E 13	42-079-31971	VISION OIL AND GAS LLC	1	5,100	1984-05-25
E 14	42-079-31974	VISION OIL AND GAS LLC	1	5,100	1984-05-25
E 10	42-079-31968	VISION OIL AND GAS LLC	1	5,100	1984-05-23
K 16	42-079-31949	VISION OIL AND GAS LLC	1	5,100	1984-05-01
L 16	42-079-31950	VISION OIL AND GAS LLC	1	5,100	1984-05-01
K 17	42-079-31850	VISION OIL AND GAS LLC	1	5,120	1983-12-09
3504	42-079-31817	VISION OIL AND GAS LLC	1	5,200	1983-09-20
J 6	42-079-31818	VISION OIL AND GAS LLC	1	5,100	1983-09-20
L 17	42-079-31816	VISION OIL AND GAS LLC	1	5,200	1983-09-20
D 12	42-079-31578	VISION OIL AND GAS LLC	1	5,200	1982-07-27
E 9	42-079-31577	VISION OIL AND GAS LLC	1	5,100	1982-07-27
F 9	42-079-31549	VISION OIL AND GAS LLC	1	5,100	1982-04-13
D 14	42-079-31548	VISION OIL AND GAS LLC	1	5,100	1982-04-12
D 11	42-079-31489	VISION OIL AND GAS LLC	1	5,200	1981-12-17
C 13	42-079-31442	VISION OIL AND GAS LLC	1	5,200	1981-08-10
D 13	42-079-31443	VISION OIL AND GAS LLC	1	5,200	1981-08-10
D 9	42-079-31444	VISION OIL AND GAS LLC	1	5,200	1981-08-10
D 10	42-079-31387	VISION OIL AND GAS LLC	1	5,200	1981-04-22
L 13	42-079-31388	VISION OIL AND GAS LLC	1	5,200	1981-04-22
4705	42-079-31389	VISION OIL AND GAS LLC	2	5,200	1981-04-20
J 13	42-079-31386	VISION OIL AND GAS LLC	1	5,125	1981-04-10
J 14	42-079-31381	VISION OIL AND GAS LLC	1	5,200	1981-04-03
K 13	42-079-31380	VISION OIL AND GAS LLC	1	5,145	1981-04-03
5207	42-079-31324	VISION OIL AND GAS LLC	1	5,200	1980-12-31
4011	42-079-31283	VISION OIL AND GAS LLC	2	5,100	1980-09-18
K 14	42-079-31250	VISION OIL AND GAS LLC	1	5,100	1980-06-27
L 14	42-079-31264	VISION OIL AND GAS LLC	1	5,100	1980-06-27
L 15	42-079-31249	VISION OIL AND GAS LLC	1	5,100	1980-06-27
K 15	42-079-31251	VISION OIL AND GAS LLC	1	5,100	1980-06-23
5309	42-079-31236	VISION OIL AND GAS LLC	1	5,200	1980-05-20
5313	42-079-31235	VISION OIL AND GAS LLC	1	5,200	1980-05-20
4607	42-079-31232	VISION OIL AND GAS LLC	1	5,200	1980-05-06
5914	42-079-31192	VISION OIL AND GAS LLC	2	5,200	1980-04-30
5201	42-079-31214	VISION OIL AND GAS LLC	1	5,200	1980-04-04
5205	42-079-31212	VISION OIL AND GAS LLC	1	5,200	1980-04-04
5206	42-079-31215	VISION OIL AND GAS LLC	1	5,200	1980-04-04
4608	42-079-31211	VISION OIL AND GAS LLC	1	5,100	1980-04-01
5202	42-079-31203	VISION OIL AND GAS LLC	1	5,200	1980-03-05
5209	42-079-31205	VISION OIL AND GAS LLC	1	5,200	1980-03-05
4611	42-079-31200	VISION OIL AND GAS LLC	1	5,100	1980-02-29
4612	42-079-31201	VISION OIL AND GAS LLC	1	5,100	1980-02-29
5214	42-079-31202	VISION OIL AND GAS LLC	1	5,200	1980-02-29
5102	42-079-31190	VISION OIL AND GAS LLC	1	5,200	1980-01-28
5106	42-079-31193	VISION OIL AND GAS LLC	1	5,200	1980-01-28
5213	42-079-31189	VISION OIL AND GAS LLC	1	5,200	1980-01-28
5802	42-079-31188	VISION OIL AND GAS LLC	1	5,200	1980-01-28
5910	42-079-31191	VISION OIL AND GAS LLC	1	5,200	1980-01-28
5203	42-079-31180	VISION OIL AND GAS LLC	1	5,200	1980-01-11
4616	42-079-31177	VISION OIL AND GAS LLC	1	5,100	1980-01-09
5204	42-079-31178	VISION OIL AND GAS LLC	1	5,200	1980-01-09
5801	42-079-31179	VISION OIL AND GAS LLC	1	5,200	1980-01-09
5109	42-079-31174	VISION OIL AND GAS LLC	1	5,200	1979-12-31
5310	42-079-31172	VISION OIL AND GAS LLC	1	5,200	1979-12-31
5314	42-079-31173	VISION OIL AND GAS LLC	1	5,200	1979-12-31
5101	42-079-31165	VISION OIL AND GAS LLC	1	5,200	1979-12-04
5105	42-079-31163	VISION OIL AND GAS LLC	1	5,200	1979-12-04
5315	42-079-31162	VISION OIL AND GAS LLC	1	5,200	1979-12-04
5913	42-079-31164	VISION OIL AND GAS LLC	1	5,200	1979-12-04
5316	42-079-31161	VISION OIL AND GAS LLC	1	5,100	1979-12-03
4504	42-079-31160	VISION OIL AND GAS LLC	1	5,100	1979-11-28
4512	42-079-31158	VISION OIL AND GAS LLC	1	5,100	1979-11-28
4508	42-079-31145	VISION OIL AND GAS LLC	1	5,100	1979-11-09
5211	42-079-31144	VISION OIL AND GAS LLC	1	5,200	1979-11-08
4615	42-079-31141	VISION OIL AND GAS LLC	1	5,100	1979-10-23
5909	42-079-31140	VISION OIL AND GAS LLC	1	5,200	1979-10-23
5308	42-079-31138	VISION OIL AND GAS LLC	1	5,200	1979-10-19
4503	42-079-31123	VISION OIL AND GAS LLC	1	5,100	1979-09-27
4507	42-079-31124	VISION OIL AND GAS LLC	1	5,100	1979-09-27
4609	42-079-31125	VISION OIL AND GAS LLC	1	5,100	1979-09-27
5311	42-079-31127	VISION OIL AND GAS LLC	1	5,200	1979-09-27
5312	42-079-31126	VISION OIL AND GAS LLC	1	5,200	1979-09-27
4602	42-079-31117	VISION OIL AND GAS LLC	1	5,200	1979-09-11
4614	42-079-31118	VISION OIL AND GAS LLC	1	5,200	1979-09-11
4502	42-079-31113	VISION OIL AND GAS LLC	1	5,100	1979-08-24
4506	42-079-31111	VISION OIL AND GAS LLC	1	5,100	1979-08-24
3916	42-079-31109	VISION OIL AND GAS LLC	1	5,200	1979-08-06
4510	42-079-31106	VISION OIL AND GAS LLC	1	5,100	1979-08-06
4601	42-079-31107	VISION OIL AND GAS LLC	1	5,100	1979-08-06
4613	42-079-31105	VISION OIL AND GAS LLC	1	5,100	1979-08-06
4501	42-079-31096	VISION OIL AND GAS LLC	1	5,100	1979-07-11
4505	42-079-31097	VISION OIL AND GAS LLC	1	5,100	1979-07-11
4509	42-079-31095	VISION OIL AND GAS LLC	1	5,100	1979-07-11
5303	42-079-31093	VISION OIL AND GAS LLC	1	5,100	1979-07-05
5307	42-079-31094	VISION OIL AND GAS LLC	1	5,100	1979-07-05
3911	42-079-31088	VISION OIL AND GAS LLC	1	5,100	1979-06-26
4714	42-079-31087	VISION OIL AND GAS LLC	1	5,200	1979-06-18
4016	42-079-31082	VISION OIL AND GAS LLC	1	5,200	1979-06-05
3912	42-079-31081	VISION OIL AND GAS LLC	1	5,200	1979-05-24
3902	42-079-31064	VISION OIL AND GAS LLC	1	5,200	1979-05-11
3906	42-079-31065	VISION OIL AND GAS LLC	1	5,200	1979-05-11
4015	42-079-31062	VISION OIL AND GAS LLC	1	5,200	1979-05-10
4709	42-079-31059	VISION OIL AND GAS LLC	1	5,200	1979-05-10
4713	42-079-31058	VISION OIL AND GAS LLC	1	5,200	1979-05-10
3903	42-079-31046	VISION OIL AND GAS LLC	1	5,200	1979-03-20
3904	42-079-31047	VISION OIL AND GAS LLC	1	5,200	1979-03-20
3907	42-079-31045	VISION OIL AND GAS LLC	1	5,200	1979-03-20
4116	42-079-31044	VISION OIL AND GAS LLC	1	5,100	1979-02-23
4104	42-079-31031	VISION OIL AND GAS LLC	1	5,100	1979-01-25
4114	42-079-31029	VISION OIL AND GAS LLC	1	5,100	1979-01-25
4115	42-079-31030	VISION OIL AND GAS LLC	1	5,100	1979-01-25
4005	42-079-31011	VISION OIL AND GAS LLC	1	5,200	1978-10-20
3908	42-079-31004	VISION OIL AND GAS LLC	1	5,200	1978-10-19
5902	42-079-31007	VISION OIL AND GAS LLC	1	5,200	1978-10-19
3510	42-079-30996	VISION OIL AND GAS LLC	1	5,200	1978-09-28
3505	42-079-30988	VISION OIL AND GAS LLC	1	5,200	1978-09-21
3506	42-079-30989	VISION OIL AND GAS LLC	1	5,200	1978-09-21
3509	42-079-30991	VISION OIL AND GAS LLC	1	5,200	1978-09-21
3401	42-079-30968	VISION OIL AND GAS LLC	1	5,100	1978-08-24
3502	42-079-30958	VISION OIL AND GAS LLC	1	5,100	1978-08-24
3503	42-079-30970	VISION OIL AND GAS LLC	1	5,100	1978-08-24
4002	42-079-30962	VISION OIL AND GAS LLC	1	5,100	1978-08-24
4003	42-079-30967	VISION OIL AND GAS LLC	1	5,100	1978-08-24
4004	42-079-30966	VISION OIL AND GAS LLC	1	5,100	1978-08-24
4108	42-079-30960	VISION OIL AND GAS LLC	1	5,100	1978-08-24
4109	42-079-30961	VISION OIL AND GAS LLC	1	5,100	1978-08-24
4110	42-079-30964	VISION OIL AND GAS LLC	1	5,100	1978-08-24
4112	42-079-30969	VISION OIL AND GAS LLC	1	5,100	1978-08-24
4113	42-079-30959	VISION OIL AND GAS LLC	1	5,100	1978-08-24
4001	42-079-30955	VISION OIL AND GAS LLC	1	5,100	1978-08-14
4105	42-079-30951	VISION OIL AND GAS LLC	1	5,200	1978-07-17
4106	42-079-30950	VISION OIL AND GAS LLC	1	5,200	1978-07-17
4107	42-079-30952	VISION OIL AND GAS LLC	1	5,200	1978-07-17
3501	42-079-30945	VISION OIL AND GAS LLC	1	5,200	1978-06-19
4103	42-079-30946	VISION OIL AND GAS LLC	1	5,200	1978-06-19
4101	42-079-30877	VISION OIL AND GAS LLC	1	5,200	1978-03-21
4102	42-079-30876	VISION OIL AND GAS LLC	1	5,200	1978-03-21

CALVIN-STARNES UNIT

Production HistoryBeta Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]

Decline Curve Analysis

Operator History (from monthly production reports)

Wells (131)

Production History