CHALK -A-

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

Operated by EXCEL ENERGY CO. (P-5 256873) 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 31451District 08Field 42971001Hydrogen sulphide fieldOilCasinghead gasSave Export

Value, all time

$804 k

Jan 1993 – Mar 2012

Value, last 12 filed months

$61 k

at the published price for each month

Months reported

231

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.”

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	23,493 bbl	$803,445
Casinghead gas	Production	152 Mcf	$427
Total			$803,871

48 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 (2)

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 32.1321, -101.2464. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

32.13207, -101.24639 · 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%

2 of 2 wells

With a plug date

50.0%

1 of 2 wells

Median depth

5,038 ft

2 wells filed one

Completion to plug

17.6 years

median over 1 well

What the state filed about each well

On the RRC proration schedule

2100.0%

A plug date is filed

150.0%

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

150.0%

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 2,600 and 7,475 ft, median 5,038 ft, over the 2 wells that filed a depth.

Completions filed

Sep 1987 – Dec 2005

2 of 2 wells

Plug dates filed

Jul 2023

1 of 2 wells; 1 filed none

Last completion to plug: a median of 17.6 years across the 1 well that filed both dates, with the middle half between 17.6 years and 17.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells


42-22733978	11	7,475 ft	Dec 2005	Jul 2023	Yes
42-22734189	10	2,600 ft	Sep 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 (231)

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

231 months


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	100	0	95.72	3.31	$9,572
Oct 2011	62	0	84.98	3.65	$5,269
Sep 2011	82	0	83.62	3.99	$6,857
Aug 2011	82	0	83.40	4.15	$6,839
Jul 2011	82	0	94.14	4.52	$7,719
Jun 2011	82	0	92.90	4.64	$7,618
May 2011	82	0	98.13	4.40	$8,047
Apr 2011	83	0	105.96	4.33	$8,795
Mar 2011	82	0	96.36	4.06	$7,902
Feb 2011	62	0	85.64	4.18	$5,310
Jan 2011	62	0	86.50	4.59	$5,363
Dec 2010	82	0	85.73	4.35	$7,030
Nov 2010	83	0	80.84	3.80	$6,710
Oct 2010	83	0	78.10	3.51	$6,482
Sep 2010	82	0	72.63	3.98	$5,956
Aug 2010	82	0	73.68	4.42	$6,042
Jul 2010	102	0	72.55	4.74	$7,400
Jun 2010	82	0	70.36	4.91	$5,770
May 2010	84	0	71.12	4.24	$5,974
Apr 2010	82	0	81.69	4.12	$6,699
Mar 2010	83	0	78.39	4.39	$6,506
Feb 2010	82	0	73.58	5.44	$6,034
Jan 2010	62	0	74.36	5.96	$4,610
Dec 2009	84	0	71.44	5.48	$6,001
Nov 2009	62	0	74.59	3.75	$4,625
Oct 2009	83	0	72.54	4.11	$6,021
Sep 2009	60	0	65.54	3.06	$3,932
Aug 2009	81	0	67.42	3.22	$5,461
Jul 2009	82	0	61.13	3.46	$5,013
Jun 2009	61	0	66.16	3.90	$4,036
May 2009	82	0	54.74	3.93	$4,489
Apr 2009	80	0	46.77	3.59	$3,742
Mar 2009	83	0	42.14	4.06	$3,498
Feb 2009	83	0	32.81	4.63	$2,723
Jan 2009	63	0	35.86	5.37	$2,259
Dec 2008	82	0	37.10	5.98	$3,042
Nov 2008	61	0	55.49	6.86	$3,385
Oct 2008	83	0	75.24	6.92	$6,245
Sep 2008	82	0	101.76	7.88	$8,344
Aug 2008	82	0	114.22	8.48	$9,366
Jul 2008	61	0	131.08	11.39	$7,996
Jun 2008	31	0	131.33	13.03	$4,071
May 2008	81	0	123.17	11.57	$9,977
Apr 2008	62	0	110.31	10.45	$6,839
Mar 2008	82	0	101.90	9.66	$8,356
Feb 2008	61	0	92.53	8.77	$5,644
Jan 2008	77	0	90.38	8.21	$6,959
Dec 2007	83	0	88.33	7.30	$7,331
Nov 2007	82	0	91.67	7.29	$7,517
Oct 2007	61	0	82.85	6.92	$5,054
Sep 2007	80	0	75.84	6.24	$6,067
Aug 2007	82	0	69.06	6.39	$5,663
Jul 2007	80	0	70.90	6.39	$5,672
Jun 2007	60	0	62.00	7.55	$3,720
May 2007	79	0	58.74	7.85	$4,640
Apr 2007	78	0	59.61	7.81	$4,650
Mar 2007	60	0	56.92	7.30	$3,415
Feb 2007	83	0	55.10	8.22	$4,573
Jan 2007	62	0	50.30	6.73	$3,119
Dec 2006	80	0	56.65	6.92	$4,532
Nov 2006	61	0	54.20	7.62	$3,306
Oct 2006	73	0	54.90	6.01	$4,008
Sep 2006	82	0	60.08	5.04	$4,927
Aug 2006	77	0	68.71	7.34	$5,291
Jul 2006	75	0	69.37	6.34	$5,203
Jun 2006	80	0	66.28	6.38	$5,302
May 2006	79	0	66.01	6.42	$5,215
Apr 2006	73	0	64.39	7.36	$4,700
Mar 2006	79	0	56.70	7.08	$4,479
Feb 2006	70	0	57.59	7.75	$4,031
Jan 2006	78	0	60.59	8.93	$4,726
Dec 2005	81	0	54.94	13.42	$4,450
Nov 2005	77	0	54.69	10.59	$4,211
Oct 2005	78	0	58.34	13.80	$4,551
Sep 2005	80	0	61.45	12.08	$4,916
Aug 2005	82	1	61.51	9.80	$5,054
Jul 2005	78	1	55.69	7.84	$4,352
Jun 2005	80	1	52.33	7.38	$4,194
May 2005	74	1	45.22	6.65	$3,353
Apr 2005	79	1	49.20	7.36	$3,894
Mar 2005	81	1	50.37	7.15	$4,087
Feb 2005	79	1	45.22	6.31	$3,579
Jan 2005	82	1	43.16	6.32	$3,545
Dec 2004	76	1	39.86	6.75	$3,036
Nov 2004	93	1	45.28	6.33	$4,217
Oct 2004	81	1	49.70	6.52	$4,032
Sep 2004	81	1	43.24	5.28	$3,508
Aug 2004	81	1	42.37	5.55	$3,438
Jul 2004	77	1	38.28	6.08	$2,954
Jun 2004	80	1	36.10	6.43	$2,894
May 2004	91	1	37.48	6.49	$3,417
Apr 2004	81	1	34.47	5.86	$2,798
Mar 2004	79	1	34.36	5.53	$2,720
Feb 2004	99	1	32.45	5.51	$3,218
Jan 2004	78	1	32.03	6.30	$2,505
Dec 2003	81	1	30.26	6.30	$2,457
Nov 2003	84	1	28.80	4.60	$2,424
Oct 2003	81	1	28.17	4.76	$2,287
Sep 2003	91	1	26.31	4.75	$2,399
Aug 2003	78	1	29.76	5.13	$2,326
Jul 2003	99	1	29.41	5.17	$2,917
Jun 2003	71	1	28.56	5.98	$2,034
May 2003	81	1	26.59	5.97	$2,160
Apr 2003	94	1	26.67	5.41	$2,512
Mar 2003	82	1	31.14	6.10	$2,560
Feb 2003	82	1	33.48	7.93	$2,753
Jan 2003	83	1	30.31	5.58	$2,521
Dec 2002	100	1	26.91	4.85	$2,696
Nov 2002	79	1	24.66	4.14	$1,952
Oct 2002	98	1	26.46	4.23	$2,597
Sep 2002	78	1	27.44	3.64	$2,144
Aug 2002	81	1	25.96	3.16	$2,106
Jul 2002	92	1	24.58	3.06	$2,264
Jun 2002	79	1	23.73	3.34	$1,878
May 2002	81	1	24.66	3.58	$2,001
Apr 2002	97	1	23.65	3.51	$2,298
Mar 2002	80	1	22.00	3.10	$1,763
Feb 2002	80	1	18.22	2.38	$1,460
Jan 2002	99	1	17.17	2.38	$1,702
Dec 2001	81	1	16.93	2.36	$1,374
Nov 2001	82	1	18.07	2.41	$1,484
Oct 2001	103	1	19.78	2.53	$2,040
Sep 2001	82	1	24.26	2.25	$1,992
Aug 2001	82	1	24.87	3.05	$2,042
Jul 2001	99	1	23.93	3.20	$2,372
Jun 2001	82	1	24.56	3.82	$2,018
May 2001	101	1	25.52	4.31	$2,582
Apr 2001	103	1	24.68	5.34	$2,547
Mar 2001	104	1	24.54	5.38	$2,558
Feb 2001	82	1	27.75	5.77	$2,281
Jan 2001	83	1	27.47	8.40	$2,288
Dec 2000	103	1	26.88	9.12	$2,778
Nov 2000	102	1	32.21	5.66	$3,291
Oct 2000	103	1	31.23	5.15	$3,222
Sep 2000	102	1	31.87	5.19	$3,256
Aug 2000	101	1	29.64	4.54	$2,998
Jul 2000	102	1	28.53	4.09	$2,914
Jun 2000	79	1	29.30	4.40	$2,319
May 2000	102	1	27.26	3.68	$2,784
Apr 2000	101	1	24.51	3.12	$2,479
Mar 2000	82	1	28.42	2.86	$2,333
Feb 2000	83	1	27.62	2.73	$2,295
Jan 2000	102	1	25.27	2.48	$2,580
Dec 1999	83	1	24.28	2.42	$2,018
Nov 1999	100	1	23.19	2.43	$2,321
Oct 1999	82	1	20.98	2.80	$1,723
Sep 1999	97	1	21.75	2.62	$2,112
Aug 1999	102	1	19.26	2.88	$1,967
Jul 1999	97	1	17.89	2.37	$1,738
Jun 1999	102	1	15.94	2.36	$1,628
May 1999	102	1	15.79	2.32	$1,613
Apr 1999	103	1	15.10	2.21	$1,558
Mar 1999	101	1	12.47	1.84	$1,261
Feb 1999	103	1	9.98	1.82	$1,030
Jan 1999	35	1	10.38	1.90	$365
Dec 1998	103	1	9.20	1.77	$949
Nov 1998	82	1	10.89	2.19	$895
Oct 1998	122	1	12.42	1.97	$1,517
Sep 1998	102	1	12.59	2.08	$1,286
Aug 1998	101	1	11.30	1.91	$1,143
Jul 1998	100	1	11.74	2.24	$1,176
Jun 1998	100	1	11.24	2.24	$1,126
May 1998	131	1	12.62	2.21	$1,655
Apr 1998	120	1	13.04	2.51	$1,567
Mar 1998	151	1	12.80	2.31	$1,935
Feb 1998	105	1	13.95	2.30	$1,467
Jan 1998	134	1	14.70	2.15	$1,972
Dec 1997	159	1	16.32	2.41	$2,597
Nov 1997	132	1	18.19	3.09	$2,404
Oct 1997	134	1	19.25	3.15	$2,583
Sep 1997	157	1	17.74	2.95	$2,788
Aug 1997	132	1	17.86	2.55	$2,360
Jul 1997	158	1	17.58	2.25	$2,780
Jun 1997	130	1	17.24	2.26	$2,243
May 1997	158	1	18.97	2.31	$3,000
Apr 1997	133	1	17.88	2.08	$2,380
Mar 1997	155	1	18.95	1.94	$2,939
Feb 1997	130	1	20.49	2.21	$2,666
Jan 1997	157	1	23.48	3.54	$3,690
Dec 1996	158	1	23.32	—	$3,685
Nov 1996	134	1	21.97	—	$2,944
Oct 1996	158	1	23.31	—	$3,683
Sep 1996	159	1	22.22	—	$3,533
Aug 1996	160	1	20.26	—	$3,242
Jul 1996	159	1	19.55	—	$3,108
Jun 1996	159	1	18.73	—	$2,978
May 1996	160	1	19.43	—	$3,109
Apr 1996	161	1	21.51	—	$3,463
Mar 1996	135	1	19.38	—	$2,616
Feb 1996	161	1	16.98	—	$2,734
Jan 1996	135	1	17.07	—	$2,304
Dec 1995	159	1	17.19	—	$2,733
Nov 1995	134	1	16.00	—	$2,144
Oct 1995	161	1	15.43	—	$2,484
Sep 1995	134	1	16.18	—	$2,168
Aug 1995	133	1	15.92	—	$2,117
Jul 1995	160	1	15.24	—	$2,438
Jun 1995	134	1	16.41	—	$2,199
May 1995	133	1	17.56	—	$2,335
Apr 1995	160	1	17.73	—	$2,837
Mar 1995	135	1	16.44	—	$2,219
Feb 1995	161	1	16.58	—	$2,669
Jan 1995	137	1	15.92	—	$2,181
Dec 1994	162	1	15.03	—	$2,435
Nov 1994	162	1	15.90	—	$2,576
Oct 1994	161	1	15.58	—	$2,508
Sep 1994	161	1	15.29	—	$2,462
Aug 1994	160	1	16.13	—	$2,581
Jul 1994	159	1	17.56	—	$2,792
Jun 1994	160	1	17.09	—	$2,734
May 1994	161	1	15.88	—	$2,557
Apr 1994	162	1	14.14	—	$2,291
Mar 1994	162	1	12.46	—	$2,019
Feb 1994	163	1	12.50	—	$2,038
Jan 1994	163	1	12.66	—	$2,064
Dec 1993	163	1	12.33	—	$2,010
Nov 1993	163	1	14.49	—	$2,362
Oct 1993	189	1	15.85	—	$2,996
Sep 1993	187	1	15.03	—	$2,811
Aug 1993	160	1	15.66	—	$2,506
Jul 1993	184	1	15.46	—	$2,845
Jun 1993	187	1	16.79	—	$3,140
May 1993	186	1	17.68	—	$3,288
Apr 1993	189	1	18.05	—	$3,411
Mar 1993	186	1	18.14	—	$3,374
Feb 1993	163	1	17.90	—	$2,918
Jan 1993	186	1	16.93	—	$3,149

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                  100 bbl  × $ 95.72 =     $9,572
Casinghead gas         0 Mcf  × $  3.31 =         $0

────────────────────────────────────────────────────
Month total                                   $9,572

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/31451 is the state's own key, not one this site invented.