LA PERLA

Name: LA PERLA lease production and value, Jan 1999 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the LA PERLA (LOBO CONS.) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 172413District 04Field 509250152 tax incentive programmesCondensateGasSave Export

Value, all time

$2.5 M

Jan 1999 – May 2026

Value, last 12 filed months

$30 k

at the published price for each month

Months reported

329

no gaps in the span

Streams

condensate, gas

The LA PERLA (LOBO CONS.) 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 719 leases and 719 wells, and the rule below applies to all of them.

Discovered

1999-06-29

as the register files it

Field class

Gas

the register's own label

Between wells

1,200 ft

minimum

From a lease line

467 ft

minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 2010-11-02.

The Commission's schedule remark for this field reads: “PERMITTED/DRILLED/COMPLETED ON THE SAME LEASE.”

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
High Cost Gas	1	1	1999-04-28	140435
NGPA	1	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
Condensate	Disposition	2 bbl	$129
Gas	Production	570,542 Mcf	$2,461,469
Total			$2,461,599

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 27.1854, -99.3392. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

27.18540, -99.33915 · 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

0.0%

0 of 1 wells

With a plug date

0.0%

0 of 1 wells

Median depth

9,207 ft

1 wells filed one

Completion to plug

—

no well filed both dates

What the state filed about each well

On the RRC proration schedule

00.0%

A plug date is filed

00.0%

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

00.0%

NeitherNo plug date, and not on the schedule.

1100.0%

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 9,207 ft.

Completions filed

Jan 1999

1 of 1 wells

1 well


42-50533875	197	9,207 ft	Jan 1999	—	—

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 (329)

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

329 months


May 2026	0	423	106.41	3.05	$1,288
Apr 2026	0	614	98.93	2.87	$1,762
Mar 2026	0	766	89.75	3.15	$2,412
Feb 2026	0	532	63.50	3.75	$1,995
Jan 2026	0	662	59.13	8.00	$5,295
Dec 2025	0	612	56.66	4.41	$2,701
Nov 2025	1	782	58.59	3.93	$3,129
Oct 2025	0	612	59.38	3.30	$2,023
Sep 2025	0	682	62.74	3.08	$2,098
Aug 2025	0	845	63.93	3.01	$2,547
Jul 2025	0	718	66.74	3.32	$2,380
Jun 2025	0	643	66.48	3.13	$2,012
May 2025	0	864	60.55	3.23	$2,793
Apr 2025	0	563	62.36	3.54	$1,995
Mar 2025	0	775	67.70	4.27	$3,308
Feb 2025	1	695	70.88	4.34	$3,088
Jan 2025	0	735	74.32	4.28	$3,145
Dec 2024	0	759	68.99	3.12	$2,369
Nov 2024	0	690	69.05	2.20	$1,517
Oct 2024	0	779	71.37	2.28	$1,777
Sep 2024	0	762	69.61	2.36	$1,802
Aug 2024	0	884	75.63	2.06	$1,824
Jul 2024	0	518	79.93	2.15	$1,112
Jun 2024	0	662	78.08	2.63	$1,744
May 2024	0	824	78.81	2.20	$1,812
Apr 2024	0	800	84.45	1.66	$1,327
Mar 2024	0	1,022	80.30	1.55	$1,579
Feb 2024	0	718	76.09	1.78	$1,281
Jan 2024	0	800	73.02	3.30	$2,638
Dec 2023	0	822	71.26	2.61	$2,146
Nov 2023	0	953	77.89	2.81	$2,676
Oct 2023	0	916	85.44	3.09	$2,828
Sep 2023	0	777	89.04	2.74	$2,125
Aug 2023	0	741	80.52	2.67	$1,981
Jul 2023	0	765	74.85	2.64	$2,021
Jun 2023	0	649	68.96	2.26	$1,466
May 2023	0	762	70.62	2.23	$1,697
Apr 2023	0	710	78.12	2.24	$1,589
Mar 2023	0	1,152	72.85	2.39	$2,757
Feb 2023	0	563	75.11	2.47	$1,388
Jan 2023	0	1,181	76.53	3.39	$4,001
Dec 2022	0	911	76.41	5.73	$5,219
Nov 2022	0	828	85.00	5.65	$4,675
Oct 2022	0	892	87.18	5.86	$5,230
Sep 2022	0	834	84.88	8.16	$6,809
Aug 2022	0	767	94.52	9.13	$7,001
Jul 2022	0	922	101.58	7.54	$6,954
Jun 2022	0	961	115.09	7.98	$7,666
May 2022	0	1,025	109.37	8.43	$8,644
Apr 2022	0	959	104.22	6.84	$6,557
Mar 2022	0	857	108.88	5.08	$4,350
Feb 2022	0	930	91.05	4.86	$4,519
Jan 2022	0	1,021	81.84	4.54	$4,633
Dec 2021	0	977	71.32	3.90	$3,809
Nov 2021	0	912	77.43	5.24	$4,776
Oct 2021	0	931	79.79	5.71	$5,320
Sep 2021	0	1,055	69.86	5.35	$5,645
Aug 2021	0	1,047	66.02	4.22	$4,419
Jul 2021	0	916	70.78	3.98	$3,648
Jun 2021	0	1,028	69.49	3.38	$3,475
May 2021	0	1,013	63.48	3.02	$3,057
Apr 2021	0	962	60.36	2.76	$2,654
Mar 2021	0	960	61.30	2.72	$2,608
Feb 2021	0	948	57.80	5.55	$5,259
Jan 2021	0	1,209	50.41	2.81	$3,398
Dec 2020	0	1,468	44.64	2.68	$3,928
Nov 2020	0	1,311	38.77	2.71	$3,548
Oct 2020	0	0	36.97	2.48	$0
Sep 2020	0	334	37.09	1.99	$665
Aug 2020	0	917	39.98	2.39	$2,187
Jul 2020	0	903	38.37	1.83	$1,648
Jun 2020	0	745	34.90	1.69	$1,259
May 2020	0	922	16.92	1.81	$1,673
Apr 2020	0	763	14.75	1.80	$1,377
Mar 2020	0	867	30.34	1.86	$1,609
Feb 2020	0	1,023	49.88	1.98	$2,026
Jan 2020	0	946	57.25	2.09	$1,982
Dec 2019	0	925	59.01	2.30	$2,132
Nov 2019	0	885	55.30	2.75	$2,434
Oct 2019	0	915	53.47	2.42	$2,213
Sep 2019	0	857	55.05	2.66	$2,277
Aug 2019	0	644	53.11	2.30	$1,484
Jul 2019	0	630	56.27	2.46	$1,550
Jun 2019	0	685	52.78	2.49	$1,706
May 2019	0	594	58.48	2.74	$1,628
Apr 2019	0	628	62.63	2.75	$1,727
Mar 2019	0	770	56.80	3.06	$2,358
Feb 2019	0	1,000	50.85	2.79	$2,792
Jan 2019	0	1,209	46.03	3.23	$3,903
Dec 2018	0	782	46.59	4.19	$3,273
Nov 2018	0	1,073	52.93	4.24	$4,547
Oct 2018	0	1,122	61.44	3.40	$3,813
Sep 2018	0	771	59.54	3.11	$2,396
Aug 2018	0	1,207	59.40	3.07	$3,701
Jul 2018	0	1,208	65.14	2.93	$3,542
Jun 2018	0	1,168	60.18	3.08	$3,594
May 2018	0	1,286	65.38	2.90	$3,730
Apr 2018	0	1,203	63.84	2.90	$3,490
Mar 2018	0	1,330	61.22	2.79	$3,707
Feb 2018	0	1,278	61.78	2.77	$3,535
Jan 2018	0	1,035	62.87	4.01	$4,150
Dec 2017	0	1,183	57.27	2.92	$3,456
Nov 2017	0	1,101	55.42	3.12	$3,433
Oct 2017	0	1,302	49.29	2.98	$3,885
Sep 2017	0	1,328	47.52	3.09	$4,100
Aug 2017	0	1,318	45.37	3.00	$3,960
Jul 2017	0	1,718	43.87	3.09	$5,304
Jun 2017	0	1,804	42.49	3.09	$5,569
May 2017	0	1,008	45.37	3.26	$3,290
Apr 2017	0	966	47.93	3.21	$3,102
Mar 2017	0	1,289	46.77	2.98	$3,846
Feb 2017	0	1,018	50.45	2.95	$3,006
Jan 2017	0	1,342	49.41	3.42	$4,588
Dec 2016	0	1,240	48.76	3.72	$4,616
Nov 2016	0	1,215	42.49	2.64	$3,213
Oct 2016	0	1,036	46.19	3.09	$3,202
Sep 2016	0	1,174	41.55	3.10	$3,640
Aug 2016	0	1,610	41.44	2.92	$4,708
Jul 2016	0	1,411	41.62	2.92	$4,126
Jun 2016	0	1,459	45.35	2.69	$3,919
May 2016	0	1,262	42.52	1.99	$2,513
Apr 2016	0	727	36.56	1.99	$1,447
Mar 2016	0	637	33.01	1.79	$1,143
Feb 2016	0	1,103	26.47	2.06	$2,276
Jan 2016	0	1,399	27.35	2.36	$3,308
Dec 2015	0	1,200	32.36	2.00	$2,402
Nov 2015	0	1,132	38.79	2.17	$2,453
Oct 2015	0	1,220	43.55	2.43	$2,960
Sep 2015	0	1,260	42.99	2.76	$3,476
Aug 2015	0	1,175	40.16	2.87	$3,375
Jul 2015	0	1,062	48.15	2.95	$3,128
Jun 2015	0	923	56.15	2.88	$2,661
May 2015	0	894	55.21	2.96	$2,642
Apr 2015	0	1,128	49.82	2.71	$3,053
Mar 2015	0	641	42.89	2.93	$1,881
Feb 2015	0	711	44.66	2.98	$2,116
Jan 2015	0	1,145	43.43	3.10	$3,550
Dec 2014	0	1,314	54.69	3.59	$4,719
Nov 2014	0	1,635	70.46	4.25	$6,952
Oct 2014	0	1,658	78.30	3.90	$6,468
Sep 2014	0	735	86.16	4.05	$2,973
Aug 2014	0	1,389	89.39	4.04	$5,605
Jul 2014	0	1,058	96.56	4.18	$4,422
Jun 2014	0	1,047	98.16	4.74	$4,960
May 2014	0	1,510	94.73	4.73	$7,137
Apr 2014	0	1,404	95.94	4.81	$6,752
Mar 2014	0	1,570	95.89	5.06	$7,939
Feb 2014	0	1,603	97.40	6.19	$9,926
Jan 2014	0	2,028	90.40	4.86	$9,858
Dec 2013	0	1,706	91.82	4.35	$7,429
Nov 2013	0	1,080	88.85	3.74	$4,037
Oct 2013	0	1,301	97.42	3.78	$4,917
Sep 2013	0	658	104.11	3.72	$2,446
Aug 2013	0	743	104.25	3.52	$2,617
Jul 2013	0	1,063	102.52	3.72	$3,952
Jun 2013	0	1,620	94.40	3.93	$6,372
May 2013	0	1,205	94.83	4.15	$5,000
Apr 2013	0	1,312	93.96	4.28	$5,619
Mar 2013	0	809	93.62	3.91	$3,166
Feb 2013	0	1,105	91.23	3.42	$3,779
Jan 2013	0	965	91.60	3.42	$3,300
Dec 2012	0	802	86.77	3.42	$2,743
Nov 2012	0	1,309	86.95	3.62	$4,745
Oct 2012	0	564	89.38	3.40	$1,917
Sep 2012	0	670	94.67	2.92	$1,955
Aug 2012	0	790	92.66	2.91	$2,297
Jul 2012	0	1,016	85.13	3.02	$3,069
Jun 2012	0	916	79.82	2.52	$2,307
May 2012	0	899	91.61	2.49	$2,237
Apr 2012	0	932	101.65	2.00	$1,861
Mar 2012	0	1,069	105.05	2.22	$2,375
Feb 2012	0	914	101.10	2.57	$2,349
Jan 2012	0	2,320	98.09	2.73	$6,343
Dec 2011	0	1,516	96.87	3.24	$4,911
Nov 2011	0	843	95.72	3.31	$2,791
Oct 2011	0	1,071	84.98	3.65	$3,908
Sep 2011	0	1,129	83.62	3.99	$4,500
Aug 2011	0	944	83.40	4.15	$3,917
Jul 2011	0	1,264	94.14	4.52	$5,710
Jun 2011	0	1,286	92.90	4.64	$5,967
May 2011	0	2,430	98.13	4.40	$10,704
Apr 2011	0	953	105.96	4.33	$4,130
Mar 2011	0	2,146	96.36	4.06	$8,707
Feb 2011	0	476	85.64	4.18	$1,990
Jan 2011	0	630	86.50	4.59	$2,891
Dec 2010	0	886	85.73	4.35	$3,852
Nov 2010	0	1,045	80.84	3.80	$3,966
Oct 2010	0	867	78.10	3.51	$3,042
Sep 2010	0	955	72.63	3.98	$3,800
Aug 2010	0	1,436	73.68	4.42	$6,346
Jul 2010	0	951	72.55	4.74	$4,504
Jun 2010	0	1,276	70.36	4.91	$6,266
May 2010	0	1,764	71.12	4.24	$7,471
Apr 2010	0	2,195	81.69	4.12	$9,049
Mar 2010	0	2,066	78.39	4.39	$9,067
Feb 2010	0	1,738	73.58	5.44	$9,459
Jan 2010	0	1,444	74.36	5.96	$8,612
Dec 2009	0	1,574	71.44	5.48	$8,631
Nov 2009	0	2,105	74.59	3.75	$7,897
Oct 2009	0	1,991	72.54	4.11	$8,184
Sep 2009	0	1,932	65.54	3.06	$5,921
Aug 2009	0	1,312	67.42	3.22	$4,223
Jul 2009	0	1,250	61.13	3.46	$4,331
Jun 2009	0	1,742	66.16	3.90	$6,785
May 2009	0	1,164	54.74	3.93	$4,570
Apr 2009	0	1,073	46.77	3.59	$3,849
Mar 2009	0	1,297	42.14	4.06	$5,265
Feb 2009	0	1,271	32.81	4.63	$5,889
Jan 2009	0	1,959	35.86	5.37	$10,522
Dec 2008	0	1,620	37.10	5.98	$9,683
Nov 2008	0	1,854	55.49	6.86	$12,719
Oct 2008	0	2,049	75.24	6.92	$14,183
Sep 2008	0	2,081	101.76	7.88	$16,392
Aug 2008	0	1,735	114.22	8.48	$14,718
Jul 2008	0	1,677	131.08	11.39	$19,100
Jun 2008	0	1,680	131.33	13.03	$21,895
May 2008	0	1,635	123.17	11.57	$18,924
Apr 2008	0	1,425	110.31	10.45	$14,898
Mar 2008	0	2,363	101.90	9.66	$22,836
Feb 2008	0	2,454	92.53	8.77	$21,523
Jan 2008	0	1,369	90.38	8.21	$11,234
Dec 2007	0	2,117	88.33	7.30	$15,458
Nov 2007	0	2,401	91.67	7.29	$17,507
Oct 2007	0	1,403	82.85	6.92	$9,712
Sep 2007	0	1,824	75.84	6.24	$11,389
Aug 2007	0	1,937	69.06	6.39	$12,373
Jul 2007	0	2,046	70.90	6.39	$13,070
Jun 2007	0	1,833	62.00	7.55	$13,836
May 2007	0	2,432	58.74	7.85	$19,082
Apr 2007	0	2,773	59.61	7.81	$21,644
Mar 2007	0	1,293	56.92	7.30	$9,441
Feb 2007	0	1,562	55.10	8.22	$12,833
Jan 2007	0	2,786	50.30	6.73	$18,741
Dec 2006	0	1,015	56.65	6.92	$7,022
Nov 2006	0	1,495	54.20	7.62	$11,388
Oct 2006	0	1,883	54.90	6.01	$11,324
Sep 2006	0	2,603	60.08	5.04	$13,112
Aug 2006	0	325	68.71	7.34	$2,385
Jul 2006	0	1,499	69.37	6.34	$9,508
Jun 2006	0	1,489	66.28	6.38	$9,506
May 2006	0	2,564	66.01	6.42	$16,474
Apr 2006	0	1,406	64.39	7.36	$10,349
Mar 2006	0	1,474	56.70	7.08	$10,440
Feb 2006	0	1,386	57.59	7.75	$10,743
Jan 2006	0	2,743	60.59	8.93	$24,504
Dec 2005	0	1,493	54.94	13.42	$20,029
Nov 2005	0	1,577	54.69	10.59	$16,698
Oct 2005	0	1,562	58.34	13.80	$21,549
Sep 2005	0	1,531	61.45	12.08	$18,493
Aug 2005	0	1,564	61.51	9.80	$15,322
Jul 2005	0	1,591	55.69	7.84	$12,479
Jun 2005	0	1,455	52.33	7.38	$10,739
May 2005	0	1,667	45.22	6.65	$11,087
Apr 2005	0	1,473	49.20	7.36	$10,842
Mar 2005	0	2,060	50.37	7.15	$14,739
Feb 2005	0	1,558	45.22	6.31	$9,834
Jan 2005	0	2,143	43.16	6.32	$13,548
Dec 2004	0	2,134	39.86	6.75	$14,407
Nov 2004	0	2,038	45.28	6.33	$12,901
Oct 2004	0	1,833	49.70	6.52	$11,942
Sep 2004	0	1,941	43.24	5.28	$10,256
Aug 2004	0	3,257	42.37	5.55	$18,079
Jul 2004	0	754	38.28	6.08	$4,587
Jun 2004	0	1,665	36.10	6.43	$10,711
May 2004	0	1,591	37.48	6.49	$10,333
Apr 2004	0	1,782	34.47	5.86	$10,440
Mar 2004	0	1,916	34.36	5.53	$10,596
Feb 2004	0	1,896	32.45	5.51	$10,446
Jan 2004	0	2,031	32.03	6.30	$12,795
Dec 2003	0	1,899	30.26	6.30	$11,967
Nov 2003	0	2,152	28.80	4.60	$9,889
Oct 2003	0	2,585	28.17	4.76	$12,304
Sep 2003	0	2,150	26.31	4.75	$10,211
Aug 2003	0	1,726	29.76	5.13	$8,854
Jul 2003	0	2,247	29.41	5.17	$11,619
Jun 2003	0	2,091	28.56	5.98	$12,510
May 2003	0	2,252	26.59	5.97	$13,450
Apr 2003	0	3,318	26.67	5.41	$17,941
Mar 2003	0	2,182	31.14	6.10	$13,302
Feb 2003	0	2,211	33.48	7.93	$17,524
Jan 2003	0	1,659	30.31	5.58	$9,261
Dec 2002	0	1,409	26.91	4.85	$6,839
Nov 2002	0	1,755	24.66	4.14	$7,260
Oct 2002	0	2,233	26.46	4.23	$9,444
Sep 2002	0	2,569	27.44	3.64	$9,339
Aug 2002	0	2,056	25.96	3.16	$6,506
Jul 2002	0	3,532	24.58	3.06	$10,814
Jun 2002	0	1,505	23.73	3.34	$5,024
May 2002	0	2,603	24.66	3.58	$9,329
Apr 2002	0	2,871	23.65	3.51	$10,084
Mar 2002	0	2,750	22.00	3.10	$8,532
Feb 2002	0	2,529	18.22	2.38	$6,008
Jan 2002	0	2,806	17.17	2.38	$6,666
Dec 2001	0	2,943	16.93	2.36	$6,958
Nov 2001	0	3,852	18.07	2.41	$9,266
Oct 2001	0	3,104	19.78	2.53	$7,850
Sep 2001	0	2,546	24.26	2.25	$5,732
Aug 2001	0	2,813	24.87	3.05	$8,589
Jul 2001	0	3,414	23.93	3.20	$10,915
Jun 2001	0	3,249	24.56	3.82	$12,425
May 2001	0	3,402	25.52	4.31	$14,654
Apr 2001	0	3,509	24.68	5.34	$18,722
Mar 2001	0	3,459	24.54	5.38	$18,597
Feb 2001	0	3,637	27.75	5.77	$20,975
Jan 2001	0	3,459	27.47	8.40	$29,051
Dec 2000	0	3,431	26.88	9.12	$31,299
Nov 2000	0	4,216	32.21	5.66	$23,854
Oct 2000	0	4,126	31.23	5.15	$21,230
Sep 2000	0	3,538	31.87	5.19	$18,350
Aug 2000	0	4,288	29.64	4.54	$19,471
Jul 2000	0	4,992	28.53	4.09	$20,416
Jun 2000	0	4,460	29.30	4.40	$19,612
May 2000	0	4,627	27.26	3.68	$17,026
Apr 2000	0	4,561	24.51	3.12	$14,212
Mar 2000	0	4,472	28.42	2.86	$12,789
Feb 2000	0	4,762	27.62	2.73	$12,984
Jan 2000	0	5,115	25.27	2.48	$12,688
Dec 1999	0	5,135	24.28	2.42	$12,446
Nov 1999	0	5,307	23.19	2.43	$12,917
Oct 1999	0	6,122	20.98	2.80	$17,164
Sep 1999	0	5,596	21.75	2.62	$14,655
Aug 1999	0	6,452	19.26	2.88	$18,553
Jul 1999	0	5,986	17.89	2.37	$14,201
Jun 1999	0	6,559	15.94	2.36	$15,493
May 1999	0	7,050	15.79	2.32	$16,363
Apr 1999	0	7,790	15.10	2.21	$17,201
Mar 1999	0	8,880	12.47	1.84	$16,324
Feb 1999	0	11,446	9.98	1.82	$20,806
Jan 1999	0	16,569	10.38	1.90	$31,480

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 2026 — as filed, then multipliedworked

Condensate             0 bbl  × $106.41 =         $0
Gas                  423 Mcf  × $  3.05 =     $1,288

────────────────────────────────────────────────────
Month total                                   $1,288

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. 04/G/172413 is the state's own key, not one this site invented.