OCONNOR, THOMAS -C-

Name: OCONNOR, THOMAS -C- lease production and value, Jan 1993 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the TOM OCONNOR field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 1543District 02Field 90534001OilCasinghead gasSave Export

Value, all time

$1.5 M

Jan 1993 – Mar 2014

Value, last 12 filed months

at the published price for each month

Months reported

255

no gaps in the span

Streams

oil, casinghead gas

The TOM OCONNOR 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 98 leases and 672 wells, and the rule below applies to all of them.

Discovered

1934-12-31

as the register files it

Field class

Oil and gas

the register's own label

Between wells

300 ft

minimum

From a lease line

150 ft

minimum

A drilling unit in this field needs at least 10 acres. The field rule took effect on 2005-05-10.

The Commission's schedule remark for this field reads: “AND FIELD CLASSIFIED AS SALVAGE.”

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	61,723 bbl	$1,287,494
Casinghead gas	Production	88,840 Mcf	$185,735
Total			$1,473,229

35,755 Mcf of this lease's gas, across 48 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 (37)

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 28.3682, -97.1488. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.9 miles. 1 well has no surveyed location and is left out of it.

28.36559, -97.14845 · centre of 36 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%

37 of 37 wells

With a plug date

18.9%

7 of 37 wells

Median depth

5,925 ft

36 wells filed one

Completion to plug

13.4 years

median over 5 wells

What the state filed about each well

On the RRC proration schedule

37100.0%

A plug date is filed

718.9%

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

718.9%

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, 36 of 37 wells. Median 5,925 ft, with the middle half between 5,912 and 5,925 ft; the shallowest is 5,676 ft and the deepest 6,520 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, 34 of 37 wells, Jun 1983 – Jun 2024. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed

Jun 1983 – Jun 2024

34 of 37 wells; 3 filed none

Plug dates filed

Dec 1993 – May 2026

7 of 37 wells; 30 filed none

Last completion to plug: a median of 13.4 years across the 5 wells that filed both dates, with the middle half between 11.2 years and 17.1 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

37 wells


42-39101150	36 L	5,925 ft	—	Nov 2013	Yes
42-39102024	46	5,925 ft	—	Dec 1993	Yes
42-39180639	27 L	—	—	—	Yes
42-39101153	47	5,912 ft	Jun 2024	—	Yes
42-39101574	54	5,912 ft	May 2024	—	Yes
42-39101152	38 U	5,918 ft	Mar 2024	—	Yes
42-39101570	16	5,859 ft	Jan 2024	—	Yes
42-39101564	14	5,948 ft	May 2023	—	Yes
42-39101176	43	5,925 ft	Jun 2022	—	Yes
42-39101149	35	5,925 ft	Sep 2020	—	Yes
42-39101167	9 L	5,925 ft	Mar 2018	—	Yes
42-39101146	20	5,925 ft	Apr 2017	—	Yes
42-39101571	41	5,925 ft	Feb 2017	—	Yes
42-39101140	3G	5,900 ft	Feb 2017	—	Yes
42-39101573	50	5,895 ft	Jan 2017	—	Yes
42-39101569	48 L	5,906 ft	Apr 2016	—	Yes
42-39101174	30	5,930 ft	May 2015	—	Yes
42-39131608	80	6,110 ft	Jan 2014	—	Yes
42-39101172	28 L	5,925 ft	Jul 2013	—	Yes
42-39101130	44	5,926 ft	Oct 2012	—	Yes
42-39101169	25 L	5,676 ft	Mar 2011	—	Yes
42-39101134	21 L	5,909 ft	Apr 2009	May 2026	Yes
42-39101168	18 U	5,911 ft	Mar 2009	—	Yes
42-39101145	55	6,000 ft	Feb 2008	—	Yes
42-39101143	51	5,915 ft	Nov 2006	—	Yes
42-39101562	12	5,925 ft	Nov 2002	—	Yes
42-39102020	42 L	5,925 ft	Jan 2002	—	Yes
42-39101563	13 L	5,960 ft	Apr 2001	—	Yes
42-39101175	31 L	6,520 ft	Mar 1996	Aug 2000	Yes
42-39101133	1 U	5,900 ft	Oct 1994	—	Yes
42-39101488	2 L	5,925 ft	Nov 1993	—	Yes
42-39102022	45	5,925 ft	Apr 1990	—	Yes
42-39101566	33 L	5,925 ft	Feb 1989	Mar 2015	Yes
42-39101137	24 L	5,925 ft	Feb 1988	—	Yes
42-39101572	49	5,914 ft	Aug 1985	Jan 1999	Yes
42-39101166	8	5,916 ft	Nov 1983	—	Yes
42-39101173	29 L	5,925 ft	Jun 1983	Aug 1994	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 (255)

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

255 months


Mar 2014	0	0	95.89	5.06	$0
Feb 2014	0	0	97.40	6.19	$0
Jan 2014	0	0	90.40	4.86	$0
Dec 2013	0	0	91.82	4.35	$0
Nov 2013	0	0	88.85	3.74	$0
Oct 2013	0	0	97.42	3.78	$0
Sep 2013	0	0	104.11	3.72	$0
Aug 2013	0	0	104.25	3.52	$0
Jul 2013	0	0	102.52	3.72	$0
Jun 2013	0	0	94.40	3.93	$0
May 2013	0	0	94.83	4.15	$0
Apr 2013	0	0	93.96	4.28	$0
Mar 2013	0	0	93.62	3.91	$0
Feb 2013	0	0	91.23	3.42	$0
Jan 2013	0	0	91.60	3.42	$0
Dec 2012	0	0	86.77	3.42	$0
Nov 2012	0	0	86.95	3.62	$0
Oct 2012	0	0	89.38	3.40	$0
Sep 2012	0	0	94.67	2.92	$0
Aug 2012	0	0	92.66	2.91	$0
Jul 2012	0	0	85.13	3.02	$0
Jun 2012	0	0	79.82	2.52	$0
May 2012	0	0	91.61	2.49	$0
Apr 2012	0	0	101.65	2.00	$0
Mar 2012	0	0	105.05	2.22	$0
Feb 2012	0	0	101.10	2.57	$0
Jan 2012	0	0	98.09	2.73	$0
Dec 2011	0	0	96.87	3.24	$0
Nov 2011	0	0	95.72	3.31	$0
Oct 2011	0	0	84.98	3.65	$0
Sep 2011	0	0	83.62	3.99	$0
Aug 2011	0	0	83.40	4.15	$0
Jul 2011	0	0	94.14	4.52	$0
Jun 2011	0	0	92.90	4.64	$0
May 2011	0	0	98.13	4.40	$0
Apr 2011	0	0	105.96	4.33	$0
Mar 2011	0	0	96.36	4.06	$0
Feb 2011	0	0	85.64	4.18	$0
Jan 2011	0	0	86.50	4.59	$0
Dec 2010	0	0	85.73	4.35	$0
Nov 2010	0	0	80.84	3.80	$0
Oct 2010	0	0	78.10	3.51	$0
Sep 2010	0	0	72.63	3.98	$0
Aug 2010	0	0	73.68	4.42	$0
Jul 2010	0	0	72.55	4.74	$0
Jun 2010	0	0	70.36	4.91	$0
May 2010	0	0	71.12	4.24	$0
Apr 2010	0	0	81.69	4.12	$0
Mar 2010	0	0	78.39	4.39	$0
Feb 2010	0	0	73.58	5.44	$0
Jan 2010	0	0	74.36	5.96	$0
Dec 2009	0	0	71.44	5.48	$0
Nov 2009	1	0	74.59	3.75	$75
Oct 2009	23	64	72.54	4.11	$1,931
Sep 2009	76	162	65.54	3.06	$5,478
Aug 2009	73	170	67.42	3.22	$5,469
Jul 2009	64	158	61.13	3.46	$4,460
Jun 2009	62	164	66.16	3.90	$4,741
May 2009	71	185	54.74	3.93	$4,613
Apr 2009	81	163	46.77	3.59	$4,373
Mar 2009	121	160	42.14	4.06	$5,748
Feb 2009	164	152	32.81	4.63	$6,085
Jan 2009	174	183	35.86	5.37	$7,223
Dec 2008	151	148	37.10	5.98	$6,487
Nov 2008	171	123	55.49	6.86	$10,333
Oct 2008	167	137	75.24	6.92	$13,513
Sep 2008	165	150	101.76	7.88	$17,972
Aug 2008	81	114	114.22	8.48	$10,219
Jul 2008	16	99	131.08	11.39	$3,225
Jun 2008	5	10	131.33	13.03	$787
May 2008	28	79	123.17	11.57	$4,363
Apr 2008	28	63	110.31	10.45	$3,747
Mar 2008	37	42	101.90	9.66	$4,176
Feb 2008	106	277	92.53	8.77	$12,238
Jan 2008	109	294	90.38	8.21	$12,264
Dec 2007	107	471	88.33	7.30	$12,891
Nov 2007	117	433	91.67	7.29	$13,883
Oct 2007	90	274	82.85	6.92	$9,353
Sep 2007	104	157	75.84	6.24	$8,868
Aug 2007	40	58	69.06	6.39	$3,133
Jul 2007	30	46	70.90	6.39	$2,421
Jun 2007	17	24	62.00	7.55	$1,235
May 2007	10	9	58.74	7.85	$658
Apr 2007	17	16	59.61	7.81	$1,138
Mar 2007	44	90	56.92	7.30	$3,162
Feb 2007	0	0	55.10	8.22	$0
Jan 2007	8	0	50.30	6.73	$402
Dec 2006	181	45	56.65	6.92	$10,565
Nov 2006	158	94	54.20	7.62	$9,280
Oct 2006	146	42	54.90	6.01	$8,268
Sep 2006	136	32	60.08	5.04	$8,332
Aug 2006	175	88	68.71	7.34	$12,670
Jul 2006	24	66	69.37	6.34	$2,084
Jun 2006	3	2	66.28	6.38	$212
May 2006	0	0	66.01	6.42	$0
Apr 2006	9	2	64.39	7.36	$594
Mar 2006	73	25	56.70	7.08	$4,316
Feb 2006	5	2	57.59	7.75	$303
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	2	0	49.20	7.36	$98
Mar 2005	0	0	50.37	7.15	$0
Feb 2005	36	26	45.22	6.31	$1,792
Jan 2005	57	60	43.16	6.32	$2,839
Dec 2004	64	86	39.86	6.75	$3,132
Nov 2004	58	26	45.28	6.33	$2,791
Oct 2004	73	79	49.70	6.52	$4,143
Sep 2004	63	120	43.24	5.28	$3,358
Aug 2004	69	103	42.37	5.55	$3,495
Jul 2004	67	187	38.28	6.08	$3,703
Jun 2004	66	174	36.10	6.43	$3,502
May 2004	59	107	37.48	6.49	$2,906
Apr 2004	174	65	34.47	5.86	$6,379
Mar 2004	121	228	34.36	5.53	$5,418
Feb 2004	59	106	32.45	5.51	$2,499
Jan 2004	64	139	32.03	6.30	$2,926
Dec 2003	91	385	30.26	6.30	$5,180
Nov 2003	94	285	28.80	4.60	$4,017
Oct 2003	172	101	28.17	4.76	$5,326
Sep 2003	158	67	26.31	4.75	$4,475
Aug 2003	207	89	29.76	5.13	$6,617
Jul 2003	264	82	29.41	5.17	$8,188
Jun 2003	298	227	28.56	5.98	$9,869
May 2003	285	70	26.59	5.97	$7,996
Apr 2003	304	115	26.67	5.41	$8,730
Mar 2003	395	514	31.14	6.10	$15,434
Feb 2003	354	240	33.48	7.93	$13,754
Jan 2003	390	166	30.31	5.58	$12,748
Dec 2002	369	0	26.91	4.85	$9,930
Nov 2002	60	0	24.66	4.14	$1,480
Oct 2002	917	5,352	26.46	4.23	$46,898
Sep 2002	1,079	721	27.44	3.64	$32,229
Aug 2002	343	1,357	25.96	3.16	$13,198
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	14	7	17.17	2.38	$257
Dec 2001	5	0	16.93	2.36	$85
Nov 2001	16	7	18.07	2.41	$306
Oct 2001	10	6	19.78	2.53	$213
Sep 2001	14	6	24.26	2.25	$353
Aug 2001	45	31	24.87	3.05	$1,214
Jul 2001	17	7	23.93	3.20	$429
Jun 2001	24	18	24.56	3.82	$658
May 2001	11	7	25.52	4.31	$311
Apr 2001	40	61	24.68	5.34	$1,313
Mar 2001	19	8	24.54	5.38	$509
Feb 2001	4	2	27.75	5.77	$123
Jan 2001	36	67	27.47	8.40	$1,552
Dec 2000	117	838	26.88	9.12	$10,790
Nov 2000	113	44	32.21	5.66	$3,889
Oct 2000	198	2,240	31.23	5.15	$17,709
Sep 2000	279	1,169	31.87	5.19	$14,955
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	25	0	28.42	2.86	$711
Feb 2000	5	0	27.62	2.73	$138
Jan 2000	435	60	25.27	2.48	$11,141
Dec 1999	474	37	24.28	2.42	$11,598
Nov 1999	496	5	23.19	2.43	$11,514
Oct 1999	472	56	20.98	2.80	$10,060
Sep 1999	546	3,382	21.75	2.62	$20,732
Aug 1999	532	4,528	19.26	2.88	$23,267
Jul 1999	536	3,998	17.89	2.37	$19,074
Jun 1999	530	2,190	15.94	2.36	$13,621
May 1999	513	1,707	15.79	2.32	$12,062
Apr 1999	430	522	15.10	2.21	$7,646
Mar 1999	888	488	12.47	1.84	$11,970
Feb 1999	606	2,416	9.98	1.82	$10,440
Jan 1999	720	1,509	10.38	1.90	$10,341
Dec 1998	691	569	9.20	1.77	$7,366
Nov 1998	557	1,047	10.89	2.19	$8,354
Oct 1998	589	855	12.42	1.97	$8,999
Sep 1998	1,343	1,487	12.59	2.08	$20,005
Aug 1998	653	3,969	11.30	1.91	$14,949
Jul 1998	1,393	1,850	11.74	2.24	$20,493
Jun 1998	599	111	11.24	2.24	$6,981
May 1998	1,010	166	12.62	2.21	$13,112
Apr 1998	32	188	13.04	2.51	$888
Mar 1998	948	165	12.80	2.31	$12,515
Feb 1998	504	16	13.95	2.30	$7,068
Jan 1998	982	173	14.70	2.15	$14,808
Dec 1997	936	267	16.32	2.41	$15,919
Nov 1997	417	40	18.19	3.09	$7,709
Oct 1997	450	37	19.25	3.15	$8,779
Sep 1997	467	67	17.74	2.95	$8,483
Aug 1997	511	45	17.86	2.55	$9,241
Jul 1997	511	54	17.58	2.25	$9,105
Jun 1997	480	26	17.24	2.26	$8,334
May 1997	522	31	18.97	2.31	$9,974
Apr 1997	481	35	17.88	2.08	$8,673
Mar 1997	518	38	18.95	1.94	$9,890
Feb 1997	593	47	20.49	2.21	$12,254
Jan 1997	637	36	23.48	3.54	$15,084
Dec 1996	636	76	23.32	—	$14,832
Nov 1996	594	56	21.97	—	$13,050
Oct 1996	628	77	23.31	—	$14,639
Sep 1996	557	68	22.22	—	$12,377
Aug 1996	606	71	20.26	—	$12,278
Jul 1996	898	68	19.55	—	$17,556
Jun 1996	606	58	18.73	—	$11,350
May 1996	627	32	19.43	—	$12,183
Apr 1996	597	89	21.51	—	$12,841
Mar 1996	633	120	19.38	—	$12,268
Feb 1996	602	151	16.98	—	$10,222
Jan 1996	663	201	17.07	—	$11,317
Dec 1995	583	135	17.19	—	$10,022
Nov 1995	329	147	16.00	—	$5,264
Oct 1995	287	511	15.43	—	$4,428
Sep 1995	98	61	16.18	—	$1,586
Aug 1995	92	63	15.92	—	$1,465
Jul 1995	99	77	15.24	—	$1,509
Jun 1995	93	51	16.41	—	$1,526
May 1995	419	454	17.56	—	$7,358
Apr 1995	669	571	17.73	—	$11,861
Mar 1995	924	555	16.44	—	$15,191
Feb 1995	519	618	16.58	—	$8,605
Jan 1995	577	631	15.92	—	$9,186
Dec 1994	897	1,665	15.03	—	$13,482
Nov 1994	600	1,376	15.90	—	$9,540
Oct 1994	912	1,739	15.58	—	$14,209
Sep 1994	703	2,017	15.29	—	$10,749
Aug 1994	831	1,902	16.13	—	$13,404
Jul 1994	364	885	17.56	—	$6,392
Jun 1994	563	67	17.09	—	$9,622
May 1994	688	557	15.88	—	$10,925
Apr 1994	630	583	14.14	—	$8,908
Mar 1994	698	570	12.46	—	$8,697
Feb 1994	567	882	12.50	—	$7,088
Jan 1994	619	747	12.66	—	$7,837
Dec 1993	633	890	12.33	—	$7,805
Nov 1993	610	850	14.49	—	$8,839
Oct 1993	655	774	15.85	—	$10,382
Sep 1993	611	671	15.03	—	$9,183
Aug 1993	866	779	15.66	—	$13,562
Jul 1993	623	2,094	15.46	—	$9,632
Jun 1993	590	2,297	16.79	—	$9,906
May 1993	480	2,612	17.68	—	$8,486
Apr 1993	488	2,565	18.05	—	$8,808
Mar 1993	855	2,773	18.14	—	$15,510
Feb 1993	402	443	17.90	—	$7,196
Jan 1993	228	1,076	16.93	—	$3,860

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.

Nov 2009 — as filed, then multipliedworked

Oil                    1 bbl  × $ 74.59 =        $75
Casinghead gas         0 Mcf  × $  3.75 =         $0

────────────────────────────────────────────────────
Month total                                      $75

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. 02/O/1543 is the state's own key, not one this site invented.