CHALK, MARY

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

Operated by LEGACY RESERVES OPERATING LP (P-5 495445) 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 19046District 08Field 42971332Hydrogen sulphide fieldOilCasinghead gasSave Export

Value, all time

$1.8 M

Jan 1993 – Sep 2012

Value, last 12 filed months

$31 k

at the published price for each month

Months reported

237

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.”

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	69,779 bbl	$1,821,893
Casinghead gas	Production	21 Mcf	$0
Total			$1,821,893

21 Mcf of this lease's gas, across 21 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 (4)

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 32.1183, -101.2460. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

32.11822, -101.24600 · 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%

4 of 4 wells

With a plug date

50.0%

2 of 4 wells

Median depth

3,244 ft

4 wells filed one

Completion to plug

—

no well filed both dates

What the state filed about each well

On the RRC proration schedule

4100.0%

A plug date is filed

250.0%

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

250.0%

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 2,972 and 3,400 ft, median 3,244 ft, over the 4 wells that filed a depth.

Completions filed

Nov 1971 – Dec 1971

2 of 4 wells; 2 filed none

Plug dates filed

Dec 1990 – Apr 2018

2 of 4 wells; 2 filed none

4 wells


42-22704132	1	3,400 ft	—	Apr 2018	Yes
42-22704139	2	2,972 ft	—	Dec 1990	Yes
42-22704150	8	3,140 ft	Dec 1971	—	Yes
42-22704148	6	3,348 ft	Nov 1971	—	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 (237)

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

237 months


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	231	0	95.72	3.31	$22,111
Oct 2011	102	0	84.98	3.65	$8,668
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	111	0	98.13	4.40	$10,892
Apr 2011	0	0	105.96	4.33	$0
Mar 2011	111	0	96.36	4.06	$10,696
Feb 2011	61	0	85.64	4.18	$5,224
Jan 2011	0	0	86.50	4.59	$0
Dec 2010	98	0	85.73	4.35	$8,402
Nov 2010	0	0	80.84	3.80	$0
Oct 2010	104	0	78.10	3.51	$8,122
Sep 2010	0	0	72.63	3.98	$0
Aug 2010	100	0	73.68	4.42	$7,368
Jul 2010	120	0	72.55	4.74	$8,706
Jun 2010	0	0	70.36	4.91	$0
May 2010	127	0	71.12	4.24	$9,032
Apr 2010	129	0	81.69	4.12	$10,538
Mar 2010	0	0	78.39	4.39	$0
Feb 2010	128	0	73.58	5.44	$9,418
Jan 2010	129	0	74.36	5.96	$9,592
Dec 2009	69	0	71.44	5.48	$4,929
Nov 2009	127	0	74.59	3.75	$9,473
Oct 2009	130	0	72.54	4.11	$9,430
Sep 2009	81	0	65.54	3.06	$5,309
Aug 2009	84	0	67.42	3.22	$5,663
Jul 2009	86	0	61.13	3.46	$5,257
Jun 2009	0	0	66.16	3.90	$0
May 2009	109	0	54.74	3.93	$5,967
Apr 2009	98	0	46.77	3.59	$4,583
Mar 2009	108	0	42.14	4.06	$4,551
Feb 2009	64	0	32.81	4.63	$2,100
Jan 2009	45	0	35.86	5.37	$1,614
Dec 2008	92	0	37.10	5.98	$3,413
Nov 2008	100	0	55.49	6.86	$5,549
Oct 2008	122	0	75.24	6.92	$9,179
Sep 2008	117	0	101.76	7.88	$11,906
Aug 2008	119	0	114.22	8.48	$13,592
Jul 2008	78	0	131.08	11.39	$10,224
Jun 2008	99	0	131.33	13.03	$13,002
May 2008	125	0	123.17	11.57	$15,396
Apr 2008	242	0	110.31	10.45	$26,695
Mar 2008	143	0	101.90	9.66	$14,572
Feb 2008	153	0	92.53	8.77	$14,157
Jan 2008	93	0	90.38	8.21	$8,405
Dec 2007	99	0	88.33	7.30	$8,745
Nov 2007	123	0	91.67	7.29	$11,275
Oct 2007	129	0	82.85	6.92	$10,688
Sep 2007	133	0	75.84	6.24	$10,087
Aug 2007	141	0	69.06	6.39	$9,737
Jul 2007	154	0	70.90	6.39	$10,919
Jun 2007	145	0	62.00	7.55	$8,990
May 2007	274	0	58.74	7.85	$16,095
Apr 2007	177	0	59.61	7.81	$10,551
Mar 2007	151	0	56.92	7.30	$8,595
Feb 2007	133	0	55.10	8.22	$7,328
Jan 2007	151	0	50.30	6.73	$7,595
Dec 2006	127	0	56.65	6.92	$7,195
Nov 2006	133	0	54.20	7.62	$7,209
Oct 2006	141	0	54.90	6.01	$7,741
Sep 2006	136	0	60.08	5.04	$8,171
Aug 2006	131	0	68.71	7.34	$9,001
Jul 2006	132	0	69.37	6.34	$9,157
Jun 2006	142	0	66.28	6.38	$9,412
May 2006	133	0	66.01	6.42	$8,779
Apr 2006	274	0	64.39	7.36	$17,643
Mar 2006	131	0	56.70	7.08	$7,428
Feb 2006	133	0	57.59	7.75	$7,659
Jan 2006	135	0	60.59	8.93	$8,180
Dec 2005	144	0	54.94	13.42	$7,911
Nov 2005	279	0	54.69	10.59	$15,259
Oct 2005	131	0	58.34	13.80	$7,643
Sep 2005	145	0	61.45	12.08	$8,910
Aug 2005	285	0	61.51	9.80	$17,530
Jul 2005	118	0	55.69	7.84	$6,571
Jun 2005	127	0	52.33	7.38	$6,646
May 2005	125	0	45.22	6.65	$5,653
Apr 2005	122	0	49.20	7.36	$6,002
Mar 2005	249	0	50.37	7.15	$12,542
Feb 2005	132	0	45.22	6.31	$5,969
Jan 2005	137	0	43.16	6.32	$5,913
Dec 2004	266	0	39.86	6.75	$10,603
Nov 2004	134	0	45.28	6.33	$6,068
Oct 2004	126	0	49.70	6.52	$6,262
Sep 2004	243	0	43.24	5.28	$10,507
Aug 2004	128	0	42.37	5.55	$5,423
Jul 2004	250	0	38.28	6.08	$9,570
Jun 2004	219	0	36.10	6.43	$7,906
May 2004	127	0	37.48	6.49	$4,760
Apr 2004	139	0	34.47	5.86	$4,791
Mar 2004	277	0	34.36	5.53	$9,518
Feb 2004	131	0	32.45	5.51	$4,251
Jan 2004	255	0	32.03	6.30	$8,168
Dec 2003	256	0	30.26	6.30	$7,747
Nov 2003	237	0	28.80	4.60	$6,826
Oct 2003	244	0	28.17	4.76	$6,873
Sep 2003	259	0	26.31	4.75	$6,814
Aug 2003	242	0	29.76	5.13	$7,202
Jul 2003	288	0	29.41	5.17	$8,470
Jun 2003	292	0	28.56	5.98	$8,340
May 2003	136	0	26.59	5.97	$3,616
Apr 2003	285	0	26.67	5.41	$7,601
Mar 2003	148	0	31.14	6.10	$4,609
Feb 2003	286	0	33.48	7.93	$9,575
Jan 2003	276	0	30.31	5.58	$8,366
Dec 2002	266	0	26.91	4.85	$7,158
Nov 2002	145	0	24.66	4.14	$3,576
Oct 2002	291	0	26.46	4.23	$7,700
Sep 2002	287	0	27.44	3.64	$7,875
Aug 2002	278	0	25.96	3.16	$7,217
Jul 2002	151	0	24.58	3.06	$3,712
Jun 2002	254	0	23.73	3.34	$6,027
May 2002	298	0	24.66	3.58	$7,349
Apr 2002	160	0	23.65	3.51	$3,784
Mar 2002	295	0	22.00	3.10	$6,490
Feb 2002	136	0	18.22	2.38	$2,478
Jan 2002	279	0	17.17	2.38	$4,790
Dec 2001	132	0	16.93	2.36	$2,235
Nov 2001	265	0	18.07	2.41	$4,789
Oct 2001	138	0	19.78	2.53	$2,730
Sep 2001	295	0	24.26	2.25	$7,157
Aug 2001	139	0	24.87	3.05	$3,457
Jul 2001	136	0	23.93	3.20	$3,254
Jun 2001	280	0	24.56	3.82	$6,877
May 2001	161	0	25.52	4.31	$4,109
Apr 2001	253	0	24.68	5.34	$6,244
Mar 2001	128	0	24.54	5.38	$3,141
Feb 2001	175	0	27.75	5.77	$4,856
Jan 2001	300	0	27.47	8.40	$8,241
Dec 2000	119	0	26.88	9.12	$3,199
Nov 2000	148	0	32.21	5.66	$4,767
Oct 2000	289	0	31.23	5.15	$9,025
Sep 2000	142	0	31.87	5.19	$4,526
Aug 2000	162	0	29.64	4.54	$4,802
Jul 2000	299	0	28.53	4.09	$8,530
Jun 2000	130	0	29.30	4.40	$3,809
May 2000	147	0	27.26	3.68	$4,007
Apr 2000	268	0	24.51	3.12	$6,569
Mar 2000	241	0	28.42	2.86	$6,849
Feb 2000	345	0	27.62	2.73	$9,529
Jan 2000	165	0	25.27	2.48	$4,170
Dec 1999	268	0	24.28	2.42	$6,507
Nov 1999	110	0	23.19	2.43	$2,551
Oct 1999	242	0	20.98	2.80	$5,077
Sep 1999	226	0	21.75	2.62	$4,916
Aug 1999	299	0	19.26	2.88	$5,759
Jul 1999	203	0	17.89	2.37	$3,632
Jun 1999	303	0	15.94	2.36	$4,830
May 1999	351	0	15.79	2.32	$5,542
Apr 1999	222	0	15.10	2.21	$3,352
Mar 1999	292	0	12.47	1.84	$3,641
Feb 1999	297	0	9.98	1.82	$2,964
Jan 1999	302	0	10.38	1.90	$3,135
Dec 1998	221	0	9.20	1.77	$2,033
Nov 1998	188	0	10.89	2.19	$2,047
Oct 1998	361	0	12.42	1.97	$4,484
Sep 1998	313	0	12.59	2.08	$3,941
Aug 1998	423	0	11.30	1.91	$4,780
Jul 1998	379	0	11.74	2.24	$4,449
Jun 1998	172	0	11.24	2.24	$1,933
May 1998	305	0	12.62	2.21	$3,849
Apr 1998	306	0	13.04	2.51	$3,990
Mar 1998	311	0	12.80	2.31	$3,981
Feb 1998	321	0	13.95	2.30	$4,478
Jan 1998	319	0	14.70	2.15	$4,689
Dec 1997	311	0	16.32	2.41	$5,076
Nov 1997	313	0	18.19	3.09	$5,693
Oct 1997	323	0	19.25	3.15	$6,218
Sep 1997	329	0	17.74	2.95	$5,836
Aug 1997	326	0	17.86	2.55	$5,822
Jul 1997	143	0	17.58	2.25	$2,514
Jun 1997	331	0	17.24	2.26	$5,706
May 1997	330	0	18.97	2.31	$6,260
Apr 1997	419	0	17.88	2.08	$7,492
Mar 1997	581	0	18.95	1.94	$11,010
Feb 1997	580	0	20.49	2.21	$11,884
Jan 1997	575	0	23.48	3.54	$13,501
Dec 1996	553	0	23.32	—	$12,896
Nov 1996	587	0	21.97	—	$12,896
Oct 1996	571	0	23.31	—	$13,310
Sep 1996	579	0	22.22	—	$12,865
Aug 1996	599	0	20.26	—	$12,136
Jul 1996	568	0	19.55	—	$11,104
Jun 1996	574	0	18.73	—	$10,751
May 1996	826	0	19.43	—	$16,049
Apr 1996	325	0	21.51	—	$6,991
Mar 1996	672	0	19.38	—	$13,023
Feb 1996	665	0	16.98	—	$11,292
Jan 1996	661	0	17.07	—	$11,283
Dec 1995	970	0	17.19	—	$16,674
Nov 1995	658	0	16.00	—	$10,528
Oct 1995	665	0	15.43	—	$10,261
Sep 1995	674	0	16.18	—	$10,905
Aug 1995	658	0	15.92	—	$10,475
Jul 1995	648	0	15.24	—	$9,876
Jun 1995	1,027	0	16.41	—	$16,853
May 1995	646	0	17.56	—	$11,344
Apr 1995	693	0	17.73	—	$12,287
Mar 1995	950	0	16.44	—	$15,618
Feb 1995	635	0	16.58	—	$10,528
Jan 1995	660	0	15.92	—	$10,507
Dec 1994	655	0	15.03	—	$9,845
Nov 1994	1,008	0	15.90	—	$16,027
Oct 1994	671	0	15.58	—	$10,454
Sep 1994	643	1	15.29	—	$9,831
Aug 1994	960	1	16.13	—	$15,485
Jul 1994	654	1	17.56	—	$11,484
Jun 1994	1,046	1	17.09	—	$17,876
May 1994	671	1	15.88	—	$10,655
Apr 1994	707	1	14.14	—	$9,997
Mar 1994	1,003	1	12.46	—	$12,497
Feb 1994	673	1	12.50	—	$8,413
Jan 1994	1,041	1	12.66	—	$13,179
Dec 1993	681	1	12.33	—	$8,397
Nov 1993	1,003	1	14.49	—	$14,533
Oct 1993	1,037	1	15.85	—	$16,436
Sep 1993	677	1	15.03	—	$10,175
Aug 1993	941	1	15.66	—	$14,736
Jul 1993	1,033	1	15.46	—	$15,970
Jun 1993	685	1	16.79	—	$11,501
May 1993	1,016	1	17.68	—	$17,963
Apr 1993	1,051	1	18.05	—	$18,971
Mar 1993	651	1	18.14	—	$11,809
Feb 1993	851	1	17.90	—	$15,233
Jan 1993	534	1	16.93	—	$9,041

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                  231 bbl  × $ 95.72 =    $22,111
Casinghead gas         0 Mcf  × $  3.31 =         $0

────────────────────────────────────────────────────
Month total                                  $22,111

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/19046 is the state's own key, not one this site invented.