RIDGE (UPPER CLEARFORK) UNIT

Name: RIDGE (UPPER CLEARFORK) UNIT lease production and value, Jan 1993 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by AOCO OPERATING, L.P. (P-5 26760) in the RIDGE (CLEAR FORK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 65989District 8AField 76595500Hydrogen sulphide fieldOilCasinghead gasSave Export

Value, all time

$5.1 M

Jan 1993 – Mar 2008

Value, last 12 filed months

at the published price for each month

Months reported

183

no gaps in the span

Streams

oil, casinghead gas

The RIDGE (CLEAR FORK) field

The Railroad Commission's own record for the field this lease produces from, including the spacing rule that governs how close together its wells may be drilled.

These are facts about the field, not about this lease. The field holds 16 leases and 106 wells, and the rule below applies to all of them.

Discovered

1957-12-01

as the register files it

Field class

Oil

the register's own label

Between wells

—

no field rule filed

From a lease line

—

no field rule filed

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: “HOOPLE (CLEARFORK) EFFECTIVE 2/9/99.”

What this lease produced, and what it was worth

Oil and condensate are valued on the volume the state records as disposed of; gas and casinghead gas on the volume produced. They are different columns of different files, and the difference is not cosmetic.

Stream	Basis	Volume	Value
Oil	Disposition	311,043 bbl	$5,059,619
Casinghead gas	Production	21,506 Mcf	$15,303
Total			$5,074,921

14,938 Mcf of this lease's gas, across 45 months, carries no value here. No free Texas wellhead gas price exists before 1997, so those months are left out of the total rather than valued at zero. The total above is therefore a floor, not an estimate.

Wells on this lease (40)

Every wellbore the Railroad Commission records against this lease key, with the depth, the last completion and the plug date exactly as filed. A well with no plug date is not stated to be producing — the state files no such flag.

These wells centre on 33.5086, -101.4985. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.8 miles.

33.50603, -101.49707 · centre of the wells drawn, derived⌘ or Ctrl + scroll to zoom

What these wells add up to

Every figure below is counted over all of this lease's wells, not over the rows listed above. The Railroad Commission files two facts about a well's state — a plug date and a proration-schedule flag — and a well can carry both, so they are published as separate counts and never merged into a status.

On the schedule

100.0%

40 of 40 wells

With a plug date

62.5%

25 of 40 wells

Median depth

4,500 ft

40 wells filed one

Completion to plug

15.9 years

median over 25 wells

What the state filed about each well

On the RRC proration schedule

40100.0%

A plug date is filed

2562.5%

BothOn the schedule and plugged. Neither fact cancels the other.

2562.5%

NeitherNo plug date, and not on the schedule.

00.0%

A plug date is the date the Commission recorded the wellbore as sealed with cement and abandoned. It is the only end-of-life fact Texas files. There is no "active" flag on a well, so this page does not print one — a well with no plug date is not stated to be producing.

How deep they were drilled

Total depth in feet, 40 of 40 wells. Median 4,500 ft, with the middle half between 4,495 and 4,503 ft; the shallowest is 4,346 ft and the deepest 5,500 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 40 of 40 wells, Feb 1960 – Apr 2026. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed

Feb 1960 – Apr 2026

40 of 40 wells

Plug dates filed

Jan 1997 – Jul 2026

25 of 40 wells; 15 filed none

Last completion to plug: a median of 15.9 years across the 25 wells that filed both dates, with the middle half between 8.8 years and 33.2 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

40 wells


42-10730885	310	4,500 ft	Apr 2026	—	Yes
42-10700095	309	5,000 ft	Jan 2022	—	Yes
42-10730508	1012W	4,504 ft	May 2021	—	Yes
42-10730389	103	4,500 ft	Dec 2016	Feb 2017	Yes
42-10730750	1015	4,501 ft	Sep 2015	—	Yes
42-10730343	1010W	4,432 ft	Jan 2012	May 2018	Yes
42-10730376	308	4,475 ft	Dec 2011	—	Yes
42-10730500	1011	4,539 ft	Nov 2011	Sep 2017	Yes
42-10730585	4013	4,500 ft	Aug 2010	Jul 2026	Yes
42-10730748	105	4,500 ft	Jul 2010	Apr 2026	Yes
42-10730342	502	4,415 ft	Jun 2010	—	Yes
42-10730884	1WS	5,500 ft	Jun 2010	Apr 2021	Yes
42-10730387	405	5,127 ft	May 2010	Jul 2017	Yes
42-10730317	503	4,421 ft	May 2010	Jan 2019	Yes
42-10730452	108W	4,502 ft	May 2010	—	Yes
42-10730502	505	4,500 ft	Apr 2010	Mar 2022	Yes
42-10730586	4012	4,500 ft	Mar 2010	—	Yes
42-10730804	504	4,500 ft	Mar 2010	Jan 2019	Yes
42-10730385	107	4,500 ft	Oct 2009	—	Yes
42-10730402	307	5,100 ft	Sep 2009	—	Yes
42-10730405	201	4,500 ft	Jul 2008	—	Yes
42-10730388	403	4,500 ft	Jul 1999	—	Yes
42-10700075	404	4,360 ft	Apr 1989	Jan 1997	Yes
42-10700090	1016	4,392 ft	Apr 1989	Jun 2016	Yes
42-10730377	204	4,385 ft	Mar 1989	Apr 2026	Yes
42-10730584	4014	4,500 ft	Jan 1989	Oct 2000	Yes
42-10730429	202	4,505 ft	Jan 1989	—	Yes
42-10730883	101	4,500 ft	Jan 1989	Mar 2022	Yes
42-10730386	104	4,500 ft	Oct 1988	Sep 2000	Yes
42-10730587	506	4,500 ft	Oct 1988	Feb 2024	Yes
42-10730375	1014W	4,480 ft	Jul 1984	Nov 2012	Yes
42-10730432	106W	4,506 ft	Jul 1984	Nov 2020	Yes
42-10730749	109	4,505 ft	Jul 1983	—	Yes
42-10730378	407W	4,450 ft	Oct 1980	Jul 2004	Yes
42-10730501	1013	4,500 ft	Jul 1980	Jul 2019	Yes
42-10730431	102W	4,500 ft	Jun 1980	Apr 2013	Yes
42-10730404	303	4,504 ft	Feb 1980	Mar 2010	Yes
42-10730403	306	4,500 ft	Dec 1979	Jun 2018	Yes
42-10730401	203	4,500 ft	Oct 1979	—	Yes
42-10700094	501	4,346 ft	Feb 1960	Jun 2016	Yes

The API number is the state's, prefixed 42 for Texas. A well is matched to this lease by the lease key the Commission files on the wellbore record, so a well that has moved between leases appears under each one it was filed against.

Every month this lease reported (183)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

183 months


Mar 2008	0	0	101.90	9.66	$0
Feb 2008	0	0	92.53	8.77	$0
Jan 2008	0	0	90.38	8.21	$0
Dec 2007	0	0	88.33	7.30	$0
Nov 2007	0	0	91.67	7.29	$0
Oct 2007	0	0	82.85	6.92	$0
Sep 2007	0	0	75.84	6.24	$0
Aug 2007	0	0	69.06	6.39	$0
Jul 2007	0	0	70.90	6.39	$0
Jun 2007	0	0	62.00	7.55	$0
May 2007	0	0	58.74	7.85	$0
Apr 2007	0	0	59.61	7.81	$0
Mar 2007	0	0	56.92	7.30	$0
Feb 2007	0	0	55.10	8.22	$0
Jan 2007	0	0	50.30	6.73	$0
Dec 2006	0	0	56.65	6.92	$0
Nov 2006	0	0	54.20	7.62	$0
Oct 2006	0	0	54.90	6.01	$0
Sep 2006	0	0	60.08	5.04	$0
Aug 2006	0	0	68.71	7.34	$0
Jul 2006	0	0	69.37	6.34	$0
Jun 2006	0	0	66.28	6.38	$0
May 2006	0	0	66.01	6.42	$0
Apr 2006	0	0	64.39	7.36	$0
Mar 2006	0	0	56.70	7.08	$0
Feb 2006	0	0	57.59	7.75	$0
Jan 2006	0	0	60.59	8.93	$0
Dec 2005	0	0	54.94	13.42	$0
Nov 2005	0	0	54.69	10.59	$0
Oct 2005	0	0	58.34	13.80	$0
Sep 2005	0	0	61.45	12.08	$0
Aug 2005	0	0	61.51	9.80	$0
Jul 2005	0	0	55.69	7.84	$0
Jun 2005	0	0	52.33	7.38	$0
May 2005	0	0	45.22	6.65	$0
Apr 2005	0	0	49.20	7.36	$0
Mar 2005	0	0	50.37	7.15	$0
Feb 2005	0	0	45.22	6.31	$0
Jan 2005	0	0	43.16	6.32	$0
Dec 2004	0	0	39.86	6.75	$0
Nov 2004	0	0	45.28	6.33	$0
Oct 2004	0	0	49.70	6.52	$0
Sep 2004	0	0	43.24	5.28	$0
Aug 2004	0	0	42.37	5.55	$0
Jul 2004	0	0	38.28	6.08	$0
Jun 2004	0	0	36.10	6.43	$0
May 2004	0	0	37.48	6.49	$0
Apr 2004	0	0	34.47	5.86	$0
Mar 2004	0	0	34.36	5.53	$0
Feb 2004	0	0	32.45	5.51	$0
Jan 2004	0	0	32.03	6.30	$0
Dec 2003	0	0	30.26	6.30	$0
Nov 2003	0	0	28.80	4.60	$0
Oct 2003	0	0	28.17	4.76	$0
Sep 2003	0	0	26.31	4.75	$0
Aug 2003	0	0	29.76	5.13	$0
Jul 2003	0	0	29.41	5.17	$0
Jun 2003	0	0	28.56	5.98	$0
May 2003	0	0	26.59	5.97	$0
Apr 2003	0	0	26.67	5.41	$0
Mar 2003	0	0	31.14	6.10	$0
Feb 2003	0	0	33.48	7.93	$0
Jan 2003	0	0	30.31	5.58	$0
Dec 2002	0	0	26.91	4.85	$0
Nov 2002	0	0	24.66	4.14	$0
Oct 2002	0	0	26.46	4.23	$0
Sep 2002	0	0	27.44	3.64	$0
Aug 2002	0	0	25.96	3.16	$0
Jul 2002	0	0	24.58	3.06	$0
Jun 2002	0	0	23.73	3.34	$0
May 2002	0	0	24.66	3.58	$0
Apr 2002	0	0	23.65	3.51	$0
Mar 2002	0	0	22.00	3.10	$0
Feb 2002	0	0	18.22	2.38	$0
Jan 2002	0	0	17.17	2.38	$0
Dec 2001	0	0	16.93	2.36	$0
Nov 2001	0	0	18.07	2.41	$0
Oct 2001	0	0	19.78	2.53	$0
Sep 2001	0	0	24.26	2.25	$0
Aug 2001	0	0	24.87	3.05	$0
Jul 2001	0	0	23.93	3.20	$0
Jun 2001	0	0	24.56	3.82	$0
May 2001	0	0	25.52	4.31	$0
Apr 2001	0	0	24.68	5.34	$0
Mar 2001	0	0	24.54	5.38	$0
Feb 2001	0	0	27.75	5.77	$0
Jan 2001	0	0	27.47	8.40	$0
Dec 2000	0	0	26.88	9.12	$0
Nov 2000	0	0	32.21	5.66	$0
Oct 2000	0	0	31.23	5.15	$0
Sep 2000	0	0	31.87	5.19	$0
Aug 2000	0	0	29.64	4.54	$0
Jul 2000	0	0	28.53	4.09	$0
Jun 2000	0	0	29.30	4.40	$0
May 2000	0	0	27.26	3.68	$0
Apr 2000	0	0	24.51	3.12	$0
Mar 2000	0	0	28.42	2.86	$0
Feb 2000	0	0	27.62	2.73	$0
Jan 2000	0	0	25.27	2.48	$0
Dec 1999	0	0	24.28	2.42	$0
Nov 1999	0	0	23.19	2.43	$0
Oct 1999	0	0	20.98	2.80	$0
Sep 1999	0	0	21.75	2.62	$0
Aug 1999	0	0	19.26	2.88	$0
Jul 1999	0	0	17.89	2.37	$0
Jun 1999	0	0	15.94	2.36	$0
May 1999	0	0	15.79	2.32	$0
Apr 1999	0	0	15.10	2.21	$0
Mar 1999	0	0	12.47	1.84	$0
Feb 1999	5,534	0	9.98	1.82	$55,229
Jan 1999	3,840	10	10.38	1.90	$39,878
Dec 1998	3,034	416	9.20	1.77	$28,651
Nov 1998	2,974	541	10.89	2.19	$33,569
Oct 1998	2,631	229	12.42	1.97	$33,128
Sep 1998	3,074	210	12.59	2.08	$39,139
Aug 1998	3,005	235	11.30	1.91	$34,405
Jul 1998	3,334	286	11.74	2.24	$39,781
Jun 1998	2,833	104	11.24	2.24	$32,076
May 1998	3,147	289	12.62	2.21	$40,353
Apr 1998	2,996	306	13.04	2.51	$39,834
Mar 1998	3,310	244	12.80	2.31	$42,932
Feb 1998	2,991	331	13.95	2.30	$42,485
Jan 1998	3,554	227	14.70	2.15	$52,733
Dec 1997	3,363	85	16.32	2.41	$55,089
Nov 1997	3,187	133	18.19	3.09	$58,382
Oct 1997	3,655	202	19.25	3.15	$70,995
Sep 1997	2,773	421	17.74	2.95	$50,437
Aug 1997	3,144	381	17.86	2.55	$57,125
Jul 1997	3,740	231	17.58	2.25	$66,268
Jun 1997	3,358	310	17.24	2.26	$58,592
May 1997	3,049	394	18.97	2.31	$58,749
Apr 1997	3,562	282	17.88	2.08	$64,276
Mar 1997	4,315	220	18.95	1.94	$82,196
Feb 1997	2,828	283	20.49	2.21	$58,570
Jan 1997	3,718	198	23.48	3.54	$88,000
Dec 1996	3,459	416	23.32	—	$80,664
Nov 1996	3,999	347	21.97	—	$87,858
Oct 1996	3,644	575	23.31	—	$84,942
Sep 1996	3,409	571	22.22	—	$75,748
Aug 1996	4,235	732	20.26	—	$85,801
Jul 1996	3,937	564	19.55	—	$76,968
Jun 1996	4,123	715	18.73	—	$77,224
May 1996	3,438	624	19.43	—	$66,800
Apr 1996	4,319	602	21.51	—	$92,902
Mar 1996	3,917	640	19.38	—	$75,911
Feb 1996	3,352	578	16.98	—	$56,917
Jan 1996	4,273	342	17.07	—	$72,940
Dec 1995	4,119	309	17.19	—	$70,806
Nov 1995	3,767	511	16.00	—	$60,272
Oct 1995	5,000	795	15.43	—	$77,150
Sep 1995	3,558	547	16.18	—	$57,568
Aug 1995	4,030	993	15.92	—	$64,158
Jul 1995	4,375	827	15.24	—	$66,675
Jun 1995	4,192	848	16.41	—	$68,791
May 1995	4,384	735	17.56	—	$76,983
Apr 1995	4,432	551	17.73	—	$78,579
Mar 1995	4,755	480	16.44	—	$78,172
Feb 1995	4,027	377	16.58	—	$66,768
Jan 1995	4,872	710	15.92	—	$77,562
Dec 1994	4,716	240	15.03	—	$70,881
Nov 1994	4,022	290	15.90	—	$63,950
Oct 1994	4,553	1	15.58	—	$70,936
Sep 1994	4,363	0	15.29	—	$66,710
Aug 1994	4,010	0	16.13	—	$64,681
Jul 1994	5,029	0	17.56	—	$88,309
Jun 1994	4,536	1	17.09	—	$77,520
May 1994	5,242	1	15.88	—	$83,243
Apr 1994	5,175	1	14.14	—	$73,175
Mar 1994	4,998	1	12.46	—	$62,275
Feb 1994	4,897	1	12.50	—	$61,213
Jan 1994	6,103	1	12.66	—	$77,264
Dec 1993	5,205	1	12.33	—	$64,178
Nov 1993	5,791	1	14.49	—	$83,912
Oct 1993	7,152	1	15.85	—	$113,359
Sep 1993	4,882	1	15.03	—	$73,376
Aug 1993	6,285	1	15.66	—	$98,423
Jul 1993	6,645	1	15.46	—	$102,732
Jun 1993	5,938	1	16.79	—	$99,699
May 1993	5,589	1	17.68	—	$98,814
Apr 1993	5,688	1	18.05	—	$102,668
Mar 1993	5,277	1	18.14	—	$95,725
Feb 1993	5,238	1	17.90	—	$93,760
Jan 1993	5,144	1	16.93	—	$87,088

How to read this page

The arithmetic is one multiplication per stream per month. Here it is, worked, on a real row from the table above.

Feb 1999 — as filed, then multipliedworked

Oil                5,534 bbl  × $  9.98 =    $55,229
Casinghead gas         0 Mcf  × $  1.82 =         $0

────────────────────────────────────────────────────
Month total                                  $55,229

The volumes are the state's, unchanged

Every barrel and every Mcf on this page is a number the Railroad Commission of Texas published in its monthly production query. Nothing is modelled, estimated or filled in.

The dollars are a multiplication, not a valuation

Volume × a published monthly price. It is not what the operator was paid: it takes no account of a contract, a differential, a transportation deduction, or the share any one owner holds.

Oil and gas are priced differently

Oil is a Texas realisation — the crude oil first purchase price. Gas is a benchmark, because no free Texas wellhead gas series exists at any date. The prices page publishes the difference rather than correcting it away.

A lease is not a well

The state reports oil on lease and gas on well, and this page is the lease grain. 8A/O/65989 is the state's own key, not one this site invented.