CHALK, G. O. "A"

Name: CHALK, G. O. "A" 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 (GLORIETA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 18987District 08Field 42971332Hydrogen sulphide fieldNGPA filingOilCasinghead gasSave Export

Value, all time

$2.7 M

Jan 1993 – Apr 2012

Value, last 12 filed months

$88 k

at the published price for each month

Months reported

232

no gaps in the span

Streams

oil, casinghead gas

The HOWARD-GLASSCOCK (GLORIETA) 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 131 leases and 850 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

660 ft

minimum

From a lease line

330 ft

minimum

A drilling unit in this field needs at least 10 acres.

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: “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	3	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	76,271 bbl	$2,626,120
Casinghead gas	Production	32,502 Mcf	$50,945
Total			$2,677,064

19,327 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 (5)

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 32.1323, -101.2535. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

32.13260, -101.25359 · 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%

5 of 5 wells

With a plug date

60.0%

3 of 5 wells

Median depth

3,050 ft

5 wells filed one

Completion to plug

14.6 years

median over 3 wells

What the state filed about each well

On the RRC proration schedule

5100.0%

A plug date is filed

360.0%

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

360.0%

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

Between 3,000 and 3,100 ft, median 3,050 ft, over the 5 wells that filed a depth.

Completions filed

Oct 1980 – Sep 2016

5 of 5 wells

Plug dates filed

May 1996 – Apr 2017

3 of 5 wells; 2 filed none

Last completion to plug: a median of 14.6 years across the 3 wells that filed both dates, with the middle half between 8.2 years and 24.4 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

5 wells


42-22731070	10	3,050 ft	Sep 2016	—	Yes
42-22731164	11	3,100 ft	Jul 2015	Apr 2017	Yes
42-22710054	9 L	3,000 ft	Oct 2014	—	Yes
42-22704238	4 L	3,015 ft	Oct 1981	May 1996	Yes
42-22732176	12	3,050 ft	Oct 1980	Jan 2015	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	112	82	95.72	3.31	$10,992
Oct 2011	125	72	84.98	3.65	$10,885
Sep 2011	110	54	83.62	3.99	$9,413
Aug 2011	126	52	83.40	4.15	$10,724
Jul 2011	161	56	94.14	4.52	$15,410
Jun 2011	176	0	92.90	4.64	$16,350
May 2011	147	3	98.13	4.40	$14,438
Apr 2011	174	11	105.96	4.33	$18,485
Mar 2011	168	13	96.36	4.06	$16,241
Feb 2011	134	26	85.64	4.18	$11,584
Jan 2011	163	46	86.50	4.59	$14,311
Dec 2010	162	19	85.73	4.35	$13,971
Nov 2010	181	33	80.84	3.80	$14,757
Oct 2010	183	60	78.10	3.51	$14,503
Sep 2010	178	56	72.63	3.98	$13,151
Aug 2010	213	79	73.68	4.42	$16,043
Jul 2010	207	80	72.55	4.74	$15,397
Jun 2010	198	85	70.36	4.91	$14,349
May 2010	240	74	71.12	4.24	$17,382
Apr 2010	228	40	81.69	4.12	$18,790
Mar 2010	259	75	78.39	4.39	$20,632
Feb 2010	257	63	73.58	5.44	$19,253
Jan 2010	260	83	74.36	5.96	$19,829
Dec 2009	294	77	71.44	5.48	$21,426
Nov 2009	278	73	74.59	3.75	$21,010
Oct 2009	282	55	72.54	4.11	$20,682
Sep 2009	253	35	65.54	3.06	$16,689
Aug 2009	253	47	67.42	3.22	$17,209
Jul 2009	248	34	61.13	3.46	$15,278
Jun 2009	253	44	66.16	3.90	$16,910
May 2009	216	27	54.74	3.93	$11,930
Apr 2009	200	40	46.77	3.59	$9,498
Mar 2009	231	42	42.14	4.06	$9,905
Feb 2009	221	37	32.81	4.63	$7,422
Jan 2009	263	40	35.86	5.37	$9,646
Dec 2008	246	19	37.10	5.98	$9,240
Nov 2008	239	13	55.49	6.86	$13,351
Oct 2008	247	21	75.24	6.92	$18,730
Sep 2008	248	18	101.76	7.88	$25,378
Aug 2008	261	22	114.22	8.48	$29,998
Jul 2008	253	20	131.08	11.39	$33,391
Jun 2008	233	22	131.33	13.03	$30,887
May 2008	248	34	123.17	11.57	$30,940
Apr 2008	255	39	110.31	10.45	$28,537
Mar 2008	264	40	101.90	9.66	$27,288
Feb 2008	243	40	92.53	8.77	$22,836
Jan 2008	270	36	90.38	8.21	$24,698
Dec 2007	292	42	88.33	7.30	$26,099
Nov 2007	294	34	91.67	7.29	$27,199
Oct 2007	286	35	82.85	6.92	$23,937
Sep 2007	225	31	75.84	6.24	$17,258
Aug 2007	294	36	69.06	6.39	$20,534
Jul 2007	283	22	70.90	6.39	$20,205
Jun 2007	277	26	62.00	7.55	$17,370
May 2007	279	24	58.74	7.85	$16,577
Apr 2007	292	32	59.61	7.81	$17,656
Mar 2007	320	28	56.92	7.30	$18,419
Feb 2007	286	20	55.10	8.22	$15,923
Jan 2007	328	23	50.30	6.73	$16,653
Dec 2006	336	26	56.65	6.92	$19,214
Nov 2006	321	28	54.20	7.62	$17,611
Oct 2006	350	30	54.90	6.01	$19,395
Sep 2006	357	32	60.08	5.04	$21,610
Aug 2006	358	32	68.71	7.34	$24,833
Jul 2006	267	19	69.37	6.34	$18,642
Jun 2006	338	16	66.28	6.38	$22,505
May 2006	360	44	66.01	6.42	$24,046
Apr 2006	338	89	64.39	7.36	$22,419
Mar 2006	358	83	56.70	7.08	$20,886
Feb 2006	323	60	57.59	7.75	$19,067
Jan 2006	335	51	60.59	8.93	$20,753
Dec 2005	296	40	54.94	13.42	$16,799
Nov 2005	312	52	54.69	10.59	$17,614
Oct 2005	301	40	58.34	13.80	$18,112
Sep 2005	186	17	61.45	12.08	$11,635
Aug 2005	200	0	61.51	9.80	$12,302
Jul 2005	301	45	55.69	7.84	$17,116
Jun 2005	297	30	52.33	7.38	$15,763
May 2005	362	50	45.22	6.65	$16,702
Apr 2005	321	55	49.20	7.36	$16,198
Mar 2005	337	51	50.37	7.15	$17,340
Feb 2005	338	43	45.22	6.31	$15,556
Jan 2005	347	24	43.16	6.32	$15,128
Dec 2004	347	55	39.86	6.75	$14,203
Nov 2004	369	58	45.28	6.33	$17,075
Oct 2004	391	59	49.70	6.52	$19,817
Sep 2004	328	63	43.24	5.28	$14,516
Aug 2004	321	65	42.37	5.55	$13,962
Jul 2004	324	68	38.28	6.08	$12,816
Jun 2004	335	62	36.10	6.43	$12,492
May 2004	371	65	37.48	6.49	$14,327
Apr 2004	335	53	34.47	5.86	$11,858
Mar 2004	378	53	34.36	5.53	$13,281
Feb 2004	262	48	32.45	5.51	$8,766
Jan 2004	282	50	32.03	6.30	$9,347
Dec 2003	286	54	30.26	6.30	$8,995
Nov 2003	282	55	28.80	4.60	$8,374
Oct 2003	314	52	28.17	4.76	$9,093
Sep 2003	348	58	26.31	4.75	$9,431
Aug 2003	288	62	29.76	5.13	$8,889
Jul 2003	278	64	29.41	5.17	$8,507
Jun 2003	212	47	28.56	5.98	$6,336
May 2003	301	62	26.59	5.97	$8,374
Apr 2003	230	59	26.67	5.41	$6,453
Mar 2003	243	61	31.14	6.10	$7,939
Feb 2003	239	56	33.48	7.93	$8,446
Jan 2003	262	56	30.31	5.58	$8,254
Dec 2002	256	58	26.91	4.85	$7,170
Nov 2002	233	0	24.66	4.14	$5,746
Oct 2002	219	56	26.46	4.23	$6,032
Sep 2002	196	44	27.44	3.64	$5,538
Aug 2002	227	56	25.96	3.16	$6,070
Jul 2002	235	54	24.58	3.06	$5,942
Jun 2002	194	54	23.73	3.34	$4,784
May 2002	231	58	24.66	3.58	$5,904
Apr 2002	241	60	23.65	3.51	$5,910
Mar 2002	227	46	22.00	3.10	$5,137
Feb 2002	215	0	18.22	2.38	$3,917
Jan 2002	260	50	17.17	2.38	$4,583
Dec 2001	212	56	16.93	2.36	$3,722
Nov 2001	223	52	18.07	2.41	$4,155
Oct 2001	259	60	19.78	2.53	$5,275
Sep 2001	282	58	24.26	2.25	$6,972
Aug 2001	245	58	24.87	3.05	$6,270
Jul 2001	280	58	23.93	3.20	$6,886
Jun 2001	314	58	24.56	3.82	$7,934
May 2001	357	54	25.52	4.31	$9,343
Apr 2001	373	60	24.68	5.34	$9,526
Mar 2001	363	54	24.54	5.38	$9,198
Feb 2001	377	48	27.75	5.77	$10,739
Jan 2001	383	0	27.47	8.40	$10,521
Dec 2000	376	0	26.88	9.12	$10,107
Nov 2000	349	52	32.21	5.66	$11,536
Oct 2000	447	150	31.23	5.15	$14,732
Sep 2000	378	1	31.87	5.19	$12,052
Aug 2000	401	7	29.64	4.54	$11,917
Jul 2000	377	0	28.53	4.09	$10,756
Jun 2000	379	78	29.30	4.40	$11,448
May 2000	350	36	27.26	3.68	$9,673
Apr 2000	317	67	24.51	3.12	$7,978
Mar 2000	337	100	28.42	2.86	$9,864
Feb 2000	266	110	27.62	2.73	$7,647
Jan 2000	370	141	25.27	2.48	$9,700
Dec 1999	312	132	24.28	2.42	$7,895
Nov 1999	293	130	23.19	2.43	$7,111
Oct 1999	304	136	20.98	2.80	$6,759
Sep 1999	332	160	21.75	2.62	$7,640
Aug 1999	279	146	19.26	2.88	$5,793
Jul 1999	167	131	17.89	2.37	$3,298
Jun 1999	194	100	15.94	2.36	$3,329
May 1999	236	145	15.79	2.32	$4,063
Apr 1999	327	137	15.10	2.21	$5,240
Mar 1999	311	158	12.47	1.84	$4,169
Feb 1999	313	122	9.98	1.82	$3,346
Jan 1999	396	108	10.38	1.90	$4,316
Dec 1998	372	130	9.20	1.77	$3,653
Nov 1998	347	129	10.89	2.19	$4,061
Oct 1998	353	132	12.42	1.97	$4,644
Sep 1998	454	162	12.59	2.08	$6,053
Aug 1998	446	139	11.30	1.91	$5,305
Jul 1998	474	134	11.74	2.24	$5,865
Jun 1998	383	118	11.24	2.24	$4,569
May 1998	480	122	12.62	2.21	$6,327
Apr 1998	465	101	13.04	2.51	$6,317
Mar 1998	586	153	12.80	2.31	$7,854
Feb 1998	571	100	13.95	2.30	$8,195
Jan 1998	514	117	14.70	2.15	$7,808
Dec 1997	570	125	16.32	2.41	$9,604
Nov 1997	600	133	18.19	3.09	$11,325
Oct 1997	633	171	19.25	3.15	$12,724
Sep 1997	581	169	17.74	2.95	$10,806
Aug 1997	565	369	17.86	2.55	$11,034
Jul 1997	588	362	17.58	2.25	$11,150
Jun 1997	652	338	17.24	2.26	$12,003
May 1997	479	370	18.97	2.31	$9,941
Apr 1997	441	342	17.88	2.08	$8,597
Mar 1997	450	363	18.95	1.94	$9,231
Feb 1997	486	328	20.49	2.21	$10,682
Jan 1997	420	337	23.48	3.54	$11,054
Dec 1996	456	345	23.32	—	$10,634
Nov 1996	500	424	21.97	—	$10,985
Oct 1996	547	383	23.31	—	$12,751
Sep 1996	471	358	22.22	—	$10,466
Aug 1996	524	361	20.26	—	$10,616
Jul 1996	532	372	19.55	—	$10,401
Jun 1996	452	337	18.73	—	$8,466
May 1996	621	367	19.43	—	$12,066
Apr 1996	549	327	21.51	—	$11,809
Mar 1996	574	354	19.38	—	$11,124
Feb 1996	598	350	16.98	—	$10,154
Jan 1996	685	348	17.07	—	$11,693
Dec 1995	655	383	17.19	—	$11,259
Nov 1995	604	366	16.00	—	$9,664
Oct 1995	627	546	15.43	—	$9,675
Sep 1995	606	366	16.18	—	$9,805
Aug 1995	485	352	15.92	—	$7,721
Jul 1995	497	366	15.24	—	$7,574
Jun 1995	557	378	16.41	—	$9,140
May 1995	509	423	17.56	—	$8,938
Apr 1995	418	386	17.73	—	$7,411
Mar 1995	349	322	16.44	—	$5,738
Feb 1995	328	1	16.58	—	$5,438
Jan 1995	392	394	15.92	—	$6,241
Dec 1994	388	397	15.03	—	$5,832
Nov 1994	411	360	15.90	—	$6,535
Oct 1994	325	447	15.58	—	$5,064
Sep 1994	349	454	15.29	—	$5,336
Aug 1994	376	488	16.13	—	$6,065
Jul 1994	398	482	17.56	—	$6,989
Jun 1994	401	186	17.09	—	$6,853
May 1994	514	482	15.88	—	$8,162
Apr 1994	401	492	14.14	—	$5,670
Mar 1994	492	456	12.46	—	$6,130
Feb 1994	349	360	12.50	—	$4,363
Jan 1994	332	521	12.66	—	$4,203
Dec 1993	358	295	12.33	—	$4,414
Nov 1993	397	303	14.49	—	$5,753
Oct 1993	445	491	15.85	—	$7,053
Sep 1993	379	444	15.03	—	$5,696
Aug 1993	352	490	15.66	—	$5,512
Jul 1993	337	518	15.46	—	$5,210
Jun 1993	327	539	16.79	—	$5,490
May 1993	305	520	17.68	—	$5,392
Apr 1993	331	510	18.05	—	$5,975
Mar 1993	343	507	18.14	—	$6,222
Feb 1993	358	478	17.90	—	$6,408
Jan 1993	362	498	16.93	—	$6,129

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                  112 bbl  × $ 95.72 =    $10,721
Casinghead gas        82 Mcf  × $  3.31 =       $272

────────────────────────────────────────────────────
Month total                                  $10,992

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/18987 is the state's own key, not one this site invented.