CHALK, G. O. -G-

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

Operated by CONOCOPHILLIPS COMPANY (P-5 172232) in the HOWARD GLASSCOCK field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 2762District 08Field 42971001Hydrogen sulphide fieldNGPA filingOilCasinghead gasSave Export

Value, all time

$8.8 M

Jan 1993 – Apr 2012

Value, last 12 filed months

$243 k

at the published price for each month

Months reported

232

no gaps in the span

Streams

oil, casinghead gas

The HOWARD GLASSCOCK 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 285 leases and 3,948 wells, and the rule below applies to all of them.

Discovered

1925-12-31

as the register files it

Field class

Oil

the register's own label

Between wells

400 ft

minimum

From a lease line

200 ft

minimum

A drilling unit in this field needs at least 5 acres. The field rule took effect on 2008-07-28.

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: “HOWARD GLASSCOCK (CONSOLIDATED), EFFECTIVE 11/22/11.”

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

Programme	Filings	With an approval date	Dated	Docket
NGPA	12	none	—	—

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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	285,990 bbl	$8,649,269
Casinghead gas	Production	59,109 Mcf	$163,191
Total			$8,812,461

22,772 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 (26)

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 32.1205, -101.2545. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

32.12028, -101.25447 · 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%

26 of 26 wells

With a plug date

53.8%

14 of 26 wells

Median depth

2,410 ft

26 wells filed one

Completion to plug

25.3 years

median over 9 wells

What the state filed about each well

On the RRC proration schedule

26100.0%

A plug date is filed

1453.8%

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

1453.8%

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, 26 of 26 wells. Median 2,410 ft, with the middle half between 1,790 and 2,500 ft; the shallowest is 1,580 ft and the deepest 3,250 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, 19 of 26 wells, Mar 1962 – Dec 2021. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed

Mar 1962 – Dec 2021

19 of 26 wells; 7 filed none

Plug dates filed

Apr 1984 – Oct 2015

14 of 26 wells; 12 filed none

Last completion to plug: a median of 25.3 years across the 9 wells that filed both dates, with the middle half between 19.3 years and 29.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

26 wells


42-22702032	8	1,628 ft	—	Aug 2005	Yes
42-22702137	13	1,615 ft	—	Aug 1991	Yes
42-22702140	16W	1,600 ft	—	Aug 1991	Yes
42-22702319	2	1,619 ft	—	Sep 2003	Yes
42-22702321	1W	1,608 ft	—	Apr 1984	Yes
42-22734092	42	2,500 ft	—	—	Yes
42-22734137	44	2,500 ft	—	—	Yes
42-22710710	21	2,276 ft	Dec 2021	—	Yes
42-22734136	43	2,500 ft	Mar 2017	—	Yes
42-22734091	41	2,507 ft	Mar 2017	—	Yes
42-22710242	19	2,300 ft	Jul 2014	—	Yes
42-22702135	10	2,880 ft	Dec 2011	Dec 2013	Yes
42-22710723	22	2,300 ft	Sep 2010	Oct 2015	Yes
42-22710670	20	2,300 ft	Jul 2010	—	Yes
42-22734094	46	3,250 ft	Dec 2009	—	Yes
42-22734138	48W	2,490 ft	Aug 2008	—	Yes
42-22734272	51W	2,500 ft	May 1988	—	Yes
42-22734271	50W	2,500 ft	May 1988	—	Yes
42-22734133	47	2,500 ft	Mar 1987	—	Yes
42-22734093	45	2,500 ft	Feb 1987	Jul 2015	Yes
42-22702139	15	1,580 ft	Apr 1986	Aug 2005	Yes
42-22702033	12	3,235 ft	Mar 1975	Jan 2005	Yes
42-22702030	5	2,981 ft	Jan 1975	Oct 2015	Yes
42-22710682	23	1,616 ft	May 1966	Aug 2005	Yes
42-22702142	17	2,285 ft	Nov 1964	Dec 1987	Yes
42-22703459	18	2,330 ft	Mar 1962	Jun 1987	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 (232)

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

232 months


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	310	289	95.72	3.31	$30,630
Oct 2011	354	248	84.98	3.65	$30,988
Sep 2011	331	169	83.62	3.99	$28,352
Aug 2011	414	172	83.40	4.15	$35,241
Jul 2011	419	189	94.14	4.52	$40,298
Jun 2011	448	0	92.90	4.64	$41,619
May 2011	361	11	98.13	4.40	$35,473
Apr 2011	434	37	105.96	4.33	$46,147
Mar 2011	433	43	96.36	4.06	$41,898
Feb 2011	343	90	85.64	4.18	$29,751
Jan 2011	440	165	86.50	4.59	$38,817
Dec 2010	470	73	85.73	4.35	$40,610
Nov 2010	474	115	80.84	3.80	$38,755
Oct 2010	444	196	78.10	3.51	$35,364
Sep 2010	467	197	72.63	3.98	$34,702
Aug 2010	531	276	73.68	4.42	$40,344
Jul 2010	730	278	72.55	4.74	$54,278
Jun 2010	805	299	70.36	4.91	$58,108
May 2010	656	261	71.12	4.24	$47,760
Apr 2010	615	140	81.69	4.12	$50,817
Mar 2010	699	264	78.39	4.39	$55,953
Feb 2010	617	200	73.58	5.44	$46,487
Jan 2010	431	217	74.36	5.96	$33,343
Dec 2009	748	270	71.44	5.48	$54,918
Nov 2009	685	241	74.59	3.75	$51,998
Oct 2009	718	192	72.54	4.11	$52,873
Sep 2009	645	123	65.54	3.06	$42,650
Aug 2009	665	166	67.42	3.22	$45,369
Jul 2009	647	115	61.13	3.46	$39,950
Jun 2009	668	158	66.16	3.90	$44,810
May 2009	654	94	54.74	3.93	$36,169
Apr 2009	609	140	46.77	3.59	$28,985
Mar 2009	660	139	42.14	4.06	$28,377
Feb 2009	732	139	32.81	4.63	$24,661
Jan 2009	807	140	35.86	5.37	$29,691
Dec 2008	762	67	37.10	5.98	$28,671
Nov 2008	738	47	55.49	6.86	$41,274
Oct 2008	763	75	75.24	6.92	$57,927
Sep 2008	765	58	101.76	7.88	$78,303
Aug 2008	785	77	114.22	8.48	$90,316
Jul 2008	785	69	131.08	11.39	$103,684
Jun 2008	746	75	131.33	13.03	$98,950
May 2008	721	102	123.17	11.57	$89,986
Apr 2008	879	140	110.31	10.45	$98,426
Mar 2008	872	133	101.90	9.66	$90,142
Feb 2008	805	139	92.53	8.77	$75,706
Jan 2008	900	126	90.38	8.21	$82,376
Dec 2007	951	147	88.33	7.30	$85,075
Nov 2007	960	119	91.67	7.29	$88,871
Oct 2007	959	126	82.85	6.92	$80,325
Sep 2007	955	133	75.84	6.24	$73,258
Aug 2007	925	123	69.06	6.39	$64,666
Jul 2007	924	77	70.90	6.39	$66,003
Jun 2007	916	90	62.00	7.55	$57,471
May 2007	909	72	58.74	7.85	$53,960
Apr 2007	791	86	59.61	7.81	$47,823
Mar 2007	857	82	56.92	7.30	$49,379
Feb 2007	622	52	55.10	8.22	$34,699
Jan 2007	902	71	50.30	6.73	$45,848
Dec 2006	924	76	56.65	6.92	$52,870
Nov 2006	878	85	54.20	7.62	$48,235
Oct 2006	942	91	54.90	6.01	$52,263
Sep 2006	907	96	60.08	5.04	$54,976
Aug 2006	906	95	68.71	7.34	$62,949
Jul 2006	965	72	69.37	6.34	$67,399
Jun 2006	877	42	66.28	6.38	$58,396
May 2006	920	30	66.01	6.42	$60,922
Apr 2006	818	26	64.39	7.36	$52,862
Mar 2006	891	24	56.70	7.08	$50,690
Feb 2006	828	18	57.59	7.75	$47,824
Jan 2006	960	35	60.59	8.93	$58,479
Dec 2005	850	30	54.94	13.42	$47,101
Nov 2005	705	29	54.69	10.59	$38,864
Oct 2005	743	120	58.34	13.80	$45,002
Sep 2005	758	78	61.45	12.08	$47,521
Aug 2005	790	1,690	61.51	9.80	$65,150
Jul 2005	823	143	55.69	7.84	$46,955
Jun 2005	813	91	52.33	7.38	$43,216
May 2005	946	149	45.22	6.65	$43,769
Apr 2005	836	165	49.20	7.36	$42,346
Mar 2005	722	156	50.37	7.15	$37,483
Feb 2005	811	131	45.22	6.31	$37,500
Jan 2005	718	74	43.16	6.32	$31,457
Dec 2004	717	163	39.86	6.75	$29,680
Nov 2004	763	175	45.28	6.33	$35,656
Oct 2004	811	176	49.70	6.52	$41,453
Sep 2004	791	192	43.24	5.28	$35,217
Aug 2004	666	195	42.37	5.55	$29,301
Jul 2004	672	205	38.28	6.08	$26,971
Jun 2004	645	186	36.10	6.43	$24,481
May 2004	714	193	37.48	6.49	$28,014
Apr 2004	550	160	34.47	5.86	$19,896
Mar 2004	559	161	34.36	5.53	$20,098
Feb 2004	577	143	32.45	5.51	$19,512
Jan 2004	895	151	32.03	6.30	$29,618
Dec 2003	885	161	30.26	6.30	$27,795
Nov 2003	873	165	28.80	4.60	$25,901
Oct 2003	970	156	28.17	4.76	$28,067
Sep 2003	1,071	170	26.31	4.75	$28,985
Aug 2003	1,001	185	29.76	5.13	$30,739
Jul 2003	1,056	192	29.41	5.17	$32,050
Jun 2003	1,046	182	28.56	5.98	$30,963
May 2003	1,125	175	26.59	5.97	$30,959
Apr 2003	1,139	180	26.67	5.41	$31,350
Mar 2003	1,207	186	31.14	6.10	$38,720
Feb 2003	1,214	160	33.48	7.93	$41,913
Jan 2003	1,345	167	30.31	5.58	$41,699
Dec 2002	1,378	172	26.91	4.85	$37,917
Nov 2002	1,254	0	24.66	4.14	$30,924
Oct 2002	1,233	164	26.46	4.23	$33,319
Sep 2002	1,152	153	27.44	3.64	$32,167
Aug 2002	1,209	148	25.96	3.16	$31,854
Jul 2002	1,076	210	24.58	3.06	$27,091
Jun 2002	1,097	160	23.73	3.34	$26,566
May 2002	1,093	194	24.66	3.58	$27,649
Apr 2002	1,011	155	23.65	3.51	$24,455
Mar 2002	1,002	191	22.00	3.10	$22,637
Feb 2002	1,117	0	18.22	2.38	$20,352
Jan 2002	1,116	141	17.17	2.38	$19,497
Dec 2001	1,107	172	16.93	2.36	$19,148
Nov 2001	1,186	179	18.07	2.41	$21,862
Oct 2001	1,190	175	19.78	2.53	$23,981
Sep 2001	1,130	209	24.26	2.25	$27,884
Aug 2001	991	168	24.87	3.05	$25,159
Jul 2001	958	146	23.93	3.20	$23,392
Jun 2001	1,045	169	24.56	3.82	$26,311
May 2001	1,023	164	25.52	4.31	$26,813
Apr 2001	1,171	162	24.68	5.34	$29,765
Mar 2001	1,110	145	24.54	5.38	$28,019
Feb 2001	900	135	27.75	5.77	$25,754
Jan 2001	924	563	27.47	8.40	$30,111
Dec 2000	954	486	26.88	9.12	$30,077
Nov 2000	1,001	359	32.21	5.66	$34,273
Oct 2000	1,211	290	31.23	5.15	$39,312
Sep 2000	841	321	31.87	5.19	$28,468
Aug 2000	769	309	29.64	4.54	$24,196
Jul 2000	932	343	28.53	4.09	$27,993
Jun 2000	864	254	29.30	4.40	$26,432
May 2000	956	297	27.26	3.68	$27,153
Apr 2000	977	151	24.51	3.12	$24,417
Mar 2000	1,129	54	28.42	2.86	$32,241
Feb 2000	1,033	74	27.62	2.73	$28,733
Jan 2000	1,374	53	25.27	2.48	$34,852
Dec 1999	1,025	96	24.28	2.42	$25,120
Nov 1999	1,048	147	23.19	2.43	$24,661
Oct 1999	1,390	272	20.98	2.80	$29,925
Sep 1999	2,516	332	21.75	2.62	$55,592
Aug 1999	1,535	279	19.26	2.88	$30,366
Jul 1999	1,511	254	17.89	2.37	$27,634
Jun 1999	1,369	224	15.94	2.36	$22,351
May 1999	1,339	227	15.79	2.32	$21,670
Apr 1999	1,502	303	15.10	2.21	$23,349
Mar 1999	1,490	306	12.47	1.84	$19,143
Feb 1999	1,270	310	9.98	1.82	$13,238
Jan 1999	1,517	353	10.38	1.90	$16,417
Dec 1998	1,514	380	9.20	1.77	$14,603
Nov 1998	1,623	446	10.89	2.19	$18,649
Oct 1998	1,613	480	12.42	1.97	$20,979
Sep 1998	1,697	450	12.59	2.08	$22,302
Aug 1998	1,853	462	11.30	1.91	$21,820
Jul 1998	1,662	405	11.74	2.24	$20,418
Jun 1998	1,673	409	11.24	2.24	$19,720
May 1998	1,827	422	12.62	2.21	$23,988
Apr 1998	2,106	476	13.04	2.51	$28,655
Mar 1998	1,978	481	12.80	2.31	$26,429
Feb 1998	1,662	350	13.95	2.30	$23,990
Jan 1998	1,884	421	14.70	2.15	$28,602
Dec 1997	1,977	389	16.32	2.41	$33,203
Nov 1997	1,813	421	18.19	3.09	$34,279
Oct 1997	1,657	475	19.25	3.15	$33,393
Sep 1997	1,833	491	17.74	2.95	$33,968
Aug 1997	1,764	502	17.86	2.55	$32,788
Jul 1997	2,296	311	17.58	2.25	$41,062
Jun 1997	1,874	369	17.24	2.26	$33,141
May 1997	1,780	434	18.97	2.31	$34,768
Apr 1997	1,884	465	17.88	2.08	$34,654
Mar 1997	2,208	494	18.95	1.94	$42,800
Feb 1997	1,988	387	20.49	2.21	$41,588
Jan 1997	1,680	391	23.48	3.54	$40,830
Dec 1996	1,871	473	23.32	—	$43,632
Nov 1996	1,890	551	21.97	—	$41,523
Oct 1996	2,112	542	23.31	—	$49,231
Sep 1996	1,994	542	22.22	—	$44,307
Aug 1996	2,045	498	20.26	—	$41,432
Jul 1996	2,014	489	19.55	—	$39,374
Jun 1996	1,954	508	18.73	—	$36,598
May 1996	2,236	563	19.43	—	$43,445
Apr 1996	2,266	511	21.51	—	$48,742
Mar 1996	3,051	464	19.38	—	$59,128
Feb 1996	1,812	381	16.98	—	$30,768
Jan 1996	2,325	377	17.07	—	$39,688
Dec 1995	2,495	424	17.19	—	$42,889
Nov 1995	2,428	412	16.00	—	$38,848
Oct 1995	2,675	692	15.43	—	$41,275
Sep 1995	2,631	521	16.18	—	$42,570
Aug 1995	2,568	597	15.92	—	$40,883
Jul 1995	2,137	456	15.24	—	$32,568
Jun 1995	2,048	379	16.41	—	$33,608
May 1995	2,259	452	17.56	—	$39,668
Apr 1995	2,311	431	17.73	—	$40,974
Mar 1995	2,140	339	16.44	—	$35,182
Feb 1995	2,033	347	16.58	—	$33,707
Jan 1995	2,130	408	15.92	—	$33,910
Dec 1994	2,395	429	15.03	—	$35,997
Nov 1994	2,017	394	15.90	—	$32,070
Oct 1994	2,240	480	15.58	—	$34,899
Sep 1994	2,249	499	15.29	—	$34,387
Aug 1994	2,247	565	16.13	—	$36,244
Jul 1994	2,017	587	17.56	—	$35,419
Jun 1994	2,238	561	17.09	—	$38,247
May 1994	2,268	554	15.88	—	$36,016
Apr 1994	2,280	612	14.14	—	$32,239
Mar 1994	2,382	491	12.46	—	$29,680
Feb 1994	2,190	616	12.50	—	$27,375
Jan 1994	2,691	628	12.66	—	$34,068
Dec 1993	2,180	420	12.33	—	$26,879
Nov 1993	2,268	465	14.49	—	$32,863
Oct 1993	1,937	532	15.85	—	$30,701
Sep 1993	1,640	463	15.03	—	$24,649
Aug 1993	1,865	459	15.66	—	$29,206
Jul 1993	1,866	416	15.46	—	$28,848
Jun 1993	1,676	402	16.79	—	$28,140
May 1993	2,111	423	17.68	—	$37,322
Apr 1993	2,109	369	18.05	—	$38,067
Mar 1993	2,429	352	18.14	—	$44,062
Feb 1993	1,997	329	17.90	—	$35,746
Jan 1993	2,122	369	16.93	—	$35,925

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 2011 — as filed, then multipliedworked

Oil                  310 bbl  × $ 95.72 =    $29,673
Casinghead gas       289 Mcf  × $  3.31 =       $957

────────────────────────────────────────────────────
Month total                                  $30,630

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. 08/O/2762 is the state's own key, not one this site invented.