TORTUGA-A-UNIT

Name: TORTUGA-A-UNIT lease production and value, Nov 2005 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by CRIMSON EXPLORATION OPER., INC. (P-5 190005) in the PEARSALL (AUSTIN CHALK) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 14663District 01Field 69981125OilCasinghead gasSave Export

Value, all time

$8.3 M

Nov 2005 – Jul 2018

Value, last 12 filed months

$2 k

at the published price for each month

Months reported

153

no gaps in the span

Streams

oil, casinghead gas

The PEARSALL (AUSTIN CHALK) 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 1,992 leases and 3,388 wells, and the rule below applies to all of them.

Discovered

1936-12-28

as the register files it

Field class

Oil and gas

the register's own label

Between wells

0 ft

minimum

From a lease line

330 ft

minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2025-06-17.

The Commission's schedule remark for this field reads: “LEASE PLAT. PRORATION PLAT IS NOT REQUIRED.”

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	112,769 bbl	$7,806,145
Casinghead gas	Production	70,287 Mcf	$505,263
Total			$8,311,408

Wells on this lease (1)

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 28.6216, -99.6591. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

28.62162, -99.65910 · 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%

1 of 1 wells

With a plug date

100.0%

1 of 1 wells

Median depth

9,539 ft

1 wells filed one

Completion to plug

12.5 years

median over 1 well

What the state filed about each well

On the RRC proration schedule

1100.0%

A plug date is filed

1100.0%

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

1100.0%

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

The one well that filed a depth was drilled to 9,539 ft.

Completions filed

Nov 2005

1 of 1 wells

Plug dates filed

May 2018

1 of 1 wells

Last completion to plug: a median of 12.5 years across the 1 well that filed both dates, with the middle half between 12.5 years and 12.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well


42-12733004	4RE	9,539 ft	Nov 2005	May 2018	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 (153)

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

153 months


Jul 2018	0	0	65.14	2.93	$0
Jun 2018	0	0	60.18	3.08	$0
May 2018	26	0	65.38	2.90	$1,700
Apr 2018	0	0	63.84	2.90	$0
Mar 2018	0	0	61.22	2.79	$0
Feb 2018	0	0	61.78	2.77	$0
Jan 2018	0	0	62.87	4.01	$0
Dec 2017	0	0	57.27	2.92	$0
Nov 2017	0	0	55.42	3.12	$0
Oct 2017	0	0	49.29	2.98	$0
Sep 2017	0	0	47.52	3.09	$0
Aug 2017	0	0	45.37	3.00	$0
Jul 2017	0	0	43.87	3.09	$0
Jun 2017	0	0	42.49	3.09	$0
May 2017	0	0	45.37	3.26	$0
Apr 2017	0	0	47.93	3.21	$0
Mar 2017	0	0	46.77	2.98	$0
Feb 2017	0	0	50.45	2.95	$0
Jan 2017	0	0	49.41	3.42	$0
Dec 2016	0	0	48.76	3.72	$0
Nov 2016	0	0	42.49	2.64	$0
Oct 2016	0	0	46.19	3.09	$0
Sep 2016	0	0	41.55	3.10	$0
Aug 2016	0	0	41.44	2.92	$0
Jul 2016	0	0	41.62	2.92	$0
Jun 2016	0	0	45.35	2.69	$0
May 2016	0	0	42.52	1.99	$0
Apr 2016	0	0	36.56	1.99	$0
Mar 2016	0	0	33.01	1.79	$0
Feb 2016	0	0	26.47	2.06	$0
Jan 2016	0	1	27.35	2.36	$2
Dec 2015	0	0	32.36	2.00	$0
Nov 2015	0	34	38.79	2.17	$74
Oct 2015	0	66	43.55	2.43	$160
Sep 2015	0	54	42.99	2.76	$149
Aug 2015	0	116	40.16	2.87	$333
Jul 2015	0	66	48.15	2.95	$194
Jun 2015	0	98	56.15	2.88	$283
May 2015	0	97	55.21	2.96	$287
Apr 2015	0	97	49.82	2.71	$263
Mar 2015	196	101	42.89	2.93	$8,703
Feb 2015	169	80	44.66	2.98	$7,786
Jan 2015	175	134	43.43	3.10	$8,016
Dec 2014	170	149	54.69	3.59	$9,832
Nov 2014	0	105	70.46	4.25	$446
Oct 2014	0	170	78.30	3.90	$663
Sep 2014	0	156	86.16	4.05	$631
Aug 2014	172	106	89.39	4.04	$15,803
Jul 2014	0	119	96.56	4.18	$497
Jun 2014	124	25	98.16	4.74	$12,290
May 2014	195	54	94.73	4.73	$18,728
Apr 2014	163	24	95.94	4.81	$15,754
Mar 2014	345	119	95.89	5.06	$33,684
Feb 2014	174	238	97.40	6.19	$18,421
Jan 2014	183	204	90.40	4.86	$17,535
Dec 2013	0	83	91.82	4.35	$361
Nov 2013	186	122	88.85	3.74	$16,982
Oct 2013	360	184	97.42	3.78	$35,767
Sep 2013	179	314	104.11	3.72	$19,803
Aug 2013	181	26	104.25	3.52	$18,961
Jul 2013	175	39	102.52	3.72	$18,086
Jun 2013	0	71	94.40	3.93	$279
May 2013	333	30	94.83	4.15	$31,703
Apr 2013	172	1	93.96	4.28	$16,165
Mar 2013	171	0	93.62	3.91	$16,009
Feb 2013	168	0	91.23	3.42	$15,327
Jan 2013	173	0	91.60	3.42	$15,847
Dec 2012	175	0	86.77	3.42	$15,185
Nov 2012	178	0	86.95	3.62	$15,477
Oct 2012	354	0	89.38	3.40	$31,641
Sep 2012	177	0	94.67	2.92	$16,757
Aug 2012	329	14	92.66	2.91	$30,526
Jul 2012	158	5	85.13	3.02	$13,466
Jun 2012	182	0	79.82	2.52	$14,527
May 2012	170	0	91.61	2.49	$15,574
Apr 2012	182	0	101.65	2.00	$18,500
Mar 2012	189	0	105.05	2.22	$19,854
Feb 2012	189	0	101.10	2.57	$19,108
Jan 2012	185	9	98.09	2.73	$18,171
Dec 2011	562	0	96.87	3.24	$54,441
Nov 2011	0	0	95.72	3.31	$0
Oct 2011	559	0	84.98	3.65	$47,504
Sep 2011	372	5	83.62	3.99	$31,127
Aug 2011	373	0	83.40	4.15	$31,108
Jul 2011	558	0	94.14	4.52	$52,530
Jun 2011	381	30	92.90	4.64	$35,534
May 2011	383	31	98.13	4.40	$37,720
Apr 2011	370	42	105.96	4.33	$39,387
Mar 2011	384	67	96.36	4.06	$37,274
Feb 2011	380	102	85.64	4.18	$32,970
Jan 2011	378	163	86.50	4.59	$33,445
Dec 2010	571	436	85.73	4.35	$50,847
Nov 2010	395	218	80.84	3.80	$32,759
Oct 2010	173	293	78.10	3.51	$14,539
Sep 2010	346	311	72.63	3.98	$26,368
Aug 2010	552	305	73.68	4.42	$42,019
Jul 2010	553	299	72.55	4.74	$41,536
Jun 2010	382	158	70.36	4.91	$27,653
May 2010	408	457	71.12	4.24	$30,952
Apr 2010	584	566	81.69	4.12	$50,040
Mar 2010	392	364	78.39	4.39	$32,326
Feb 2010	384	91	73.58	5.44	$28,750
Jan 2010	740	30	74.36	5.96	$55,205
Dec 2009	582	362	71.44	5.48	$43,563
Nov 2009	582	632	74.59	3.75	$45,782
Oct 2009	748	748	72.54	4.11	$57,334
Sep 2009	563	650	65.54	3.06	$38,891
Aug 2009	752	637	67.42	3.22	$52,750
Jul 2009	947	699	61.13	3.46	$60,312
Jun 2009	938	169	66.16	3.90	$62,716
May 2009	1,135	581	54.74	3.93	$64,411
Apr 2009	938	233	46.77	3.59	$44,706
Mar 2009	1,311	484	42.14	4.06	$57,210
Feb 2009	1,156	348	32.81	4.63	$39,541
Jan 2009	1,151	605	35.86	5.37	$44,524
Dec 2008	1,526	559	37.10	5.98	$59,956
Nov 2008	1,512	598	55.49	6.86	$88,003
Oct 2008	1,136	1,057	75.24	6.92	$92,789
Sep 2008	1,128	445	101.76	7.88	$118,291
Aug 2008	1,480	870	114.22	8.48	$176,426
Jul 2008	941	512	131.08	11.39	$129,178
Jun 2008	1,300	277	131.33	13.03	$174,339
May 2008	1,286	156	123.17	11.57	$160,202
Apr 2008	911	666	110.31	10.45	$107,455
Mar 2008	1,123	476	101.90	9.66	$119,034
Feb 2008	1,105	432	92.53	8.77	$106,035
Jan 2008	2,011	549	90.38	8.21	$186,259
Dec 2007	1,493	834	88.33	7.30	$137,967
Nov 2007	1,502	978	91.67	7.29	$144,820
Oct 2007	1,686	1,041	82.85	6.92	$146,891
Sep 2007	1,286	1,066	75.84	6.24	$104,187
Aug 2007	1,623	1,145	69.06	6.39	$119,399
Jul 2007	1,274	1,116	70.90	6.39	$97,456
Jun 2007	1,670	1,034	62.00	7.55	$111,345
May 2007	1,657	973	58.74	7.85	$104,967
Apr 2007	1,610	1,001	59.61	7.81	$103,785
Mar 2007	1,504	1,310	56.92	7.30	$95,173
Feb 2007	1,142	1,203	55.10	8.22	$72,808
Jan 2007	2,270	1,492	50.30	6.73	$124,217
Dec 2006	1,489	1,868	56.65	6.92	$97,276
Nov 2006	1,994	1,362	54.20	7.62	$118,450
Oct 2006	1,926	1,194	54.90	6.01	$112,918
Sep 2006	1,808	1,591	60.08	5.04	$116,639
Aug 2006	2,985	3,015	68.71	7.34	$227,229
Jul 2006	3,333	1,645	69.37	6.34	$241,644
Jun 2006	2,926	2,992	66.28	6.38	$213,036
May 2006	3,901	2,575	66.01	6.42	$274,049
Apr 2006	3,199	2,621	64.39	7.36	$225,275
Mar 2006	3,955	3,469	56.70	7.08	$248,819
Feb 2006	3,564	4,026	57.59	7.75	$236,457
Jan 2006	4,757	3,669	60.59	8.93	$321,003
Dec 2005	6,205	3,814	54.94	13.42	$392,069
Nov 2005	8,910	3,229	54.69	10.59	$521,478

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.

May 2018 — as filed, then multipliedworked

Oil                   26 bbl  × $ 65.38 =     $1,700
Casinghead gas         0 Mcf  × $  2.90 =         $0

────────────────────────────────────────────────────
Month total                                   $1,700

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. 01/O/14663 is the state's own key, not one this site invented.