PIRKLE UNIT

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

Operated by OXY USA INC. (P-5 630591) in the SLAUGHTER field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 19748District 8AField 83991001Hydrogen sulphide fieldNGPA filingOilCasinghead gasSave Export

Value, all time

$20.5 M

Jan 1993 – Aug 2016

Value, last 12 filed months

$266 k

at the published price for each month

Months reported

284

no gaps in the span

Streams

oil, casinghead gas

The SLAUGHTER 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 160 leases and 6,532 wells, and the rule below applies to all of them.

Discovered

1937-12-31

as the register files it

Field class

Oil

the register's own label

Between wells

880 ft

minimum

From a lease line

440 ft

minimum

A drilling unit in this field needs at least 17 acres. The field rule took effect on 1993-02-02.

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: “UNITS MAY BE 17.7 AC. OR UP TO 35.4 AC.”

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	2	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	493,056 bbl	$20,059,715
Casinghead gas	Production	142,912 Mcf	$444,729
Total			$20,504,444

45,176 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 33.4686, -102.4565. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

33.46808, -102.45679 · 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

20.0%

1 of 5 wells

With a plug date

0.0%

0 of 5 wells

Median depth

4,988 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

120.0%

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.

480.0%

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 4,982 and 4,992 ft, median 4,988 ft, over the 4 wells that filed a depth.

Completions filed

Nov 1981 – May 2024

4 of 5 wells; 1 filed none

5 wells


42-21902552	1	4,990 ft	—	—	—
42-21901677	3	4,992 ft	May 2024	—	Yes
42-21902553	2	4,985 ft	Jun 2006	—	—
42-21931934	4	—	Jul 2001	—	—
42-21933298	5	4,982 ft	Nov 1981	—	—

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 (284)

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

284 months


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	991	208	36.56	1.99	$36,645
Mar 2016	786	239	33.01	1.79	$26,375
Feb 2016	1,151	224	26.47	2.06	$30,929
Jan 2016	964	231	27.35	2.36	$26,912
Dec 2015	891	238	32.36	2.00	$29,309
Nov 2015	915	262	38.79	2.17	$36,061
Oct 2015	835	244	43.55	2.43	$36,956
Sep 2015	976	244	42.99	2.76	$42,631
Aug 2015	1,009	232	40.16	2.87	$41,188
Jul 2015	772	198	48.15	2.95	$37,755
Jun 2015	1,165	256	56.15	2.88	$66,153
May 2015	982	211	55.21	2.96	$54,840
Apr 2015	1,186	213	49.82	2.71	$59,663
Mar 2015	883	230	42.89	2.93	$38,547
Feb 2015	848	198	44.66	2.98	$38,461
Jan 2015	1,034	208	43.43	3.10	$45,552
Dec 2014	834	216	54.69	3.59	$46,387
Nov 2014	843	229	70.46	4.25	$60,371
Oct 2014	1,173	281	78.30	3.90	$92,942
Sep 2014	948	290	86.16	4.05	$82,853
Aug 2014	1,458	352	89.39	4.04	$131,751
Jul 2014	657	242	96.56	4.18	$64,451
Jun 2014	973	254	98.16	4.74	$96,713
May 2014	1,264	276	94.73	4.73	$121,043
Apr 2014	976	334	95.94	4.81	$95,244
Mar 2014	1,220	267	95.89	5.06	$118,336
Feb 2014	814	243	97.40	6.19	$80,788
Jan 2014	1,436	287	90.40	4.86	$131,209
Dec 2013	979	270	91.82	4.35	$91,067
Nov 2013	1,233	248	88.85	3.74	$110,479
Oct 2013	824	230	97.42	3.78	$81,143
Sep 2013	1,386	312	104.11	3.72	$145,456
Aug 2013	814	295	104.25	3.52	$85,899
Jul 2013	1,302	342	102.52	3.72	$134,753
Jun 2013	1,156	287	94.40	3.93	$110,255
May 2013	1,119	309	94.83	4.15	$107,397
Apr 2013	1,133	303	93.96	4.28	$107,754
Mar 2013	1,131	319	93.62	3.91	$107,132
Feb 2013	1,004	280	91.23	3.42	$92,552
Jan 2013	1,444	324	91.60	3.42	$133,378
Dec 2012	964	399	86.77	3.42	$85,011
Nov 2012	1,451	371	86.95	3.62	$127,509
Oct 2012	1,287	404	89.38	3.40	$116,406
Sep 2012	1,172	364	94.67	2.92	$112,016
Aug 2012	1,433	408	92.66	2.91	$133,968
Jul 2012	1,383	448	85.13	3.02	$119,088
Jun 2012	1,070	270	79.82	2.52	$86,088
May 2012	1,304	320	91.61	2.49	$120,256
Apr 2012	1,189	244	101.65	2.00	$121,349
Mar 2012	1,394	399	105.05	2.22	$147,326
Feb 2012	1,191	351	101.10	2.57	$121,312
Jan 2012	1,209	356	98.09	2.73	$119,564
Dec 2011	1,222	550	96.87	3.24	$120,157
Nov 2011	1,154	319	95.72	3.31	$111,517
Oct 2011	1,170	318	84.98	3.65	$100,587
Sep 2011	988	329	83.62	3.99	$83,928
Aug 2011	1,264	413	83.40	4.15	$107,131
Jul 2011	1,165	407	94.14	4.52	$111,512
Jun 2011	1,381	395	92.90	4.64	$130,128
May 2011	1,107	307	98.13	4.40	$109,982
Apr 2011	1,337	386	105.96	4.33	$143,341
Mar 2011	1,313	421	96.36	4.06	$128,229
Feb 2011	1,208	337	85.64	4.18	$104,862
Jan 2011	1,450	358	86.50	4.59	$127,068
Dec 2010	1,343	345	85.73	4.35	$116,635
Nov 2010	1,396	355	80.84	3.80	$114,200
Oct 2010	1,474	429	78.10	3.51	$116,625
Sep 2010	1,299	428	72.63	3.98	$96,050
Aug 2010	1,466	381	73.68	4.42	$109,699
Jul 2010	1,360	412	72.55	4.74	$100,619
Jun 2010	1,310	384	70.36	4.91	$94,057
May 2010	1,384	367	71.12	4.24	$99,984
Apr 2010	1,463	319	81.69	4.12	$120,828
Mar 2010	1,519	318	78.39	4.39	$120,470
Feb 2010	1,222	262	73.58	5.44	$91,341
Jan 2010	1,497	282	74.36	5.96	$112,999
Dec 2009	1,491	374	71.44	5.48	$108,568
Nov 2009	1,365	301	74.59	3.75	$102,945
Oct 2009	1,570	346	72.54	4.11	$115,310
Sep 2009	1,161	320	65.54	3.06	$77,073
Aug 2009	1,445	353	67.42	3.22	$98,558
Jul 2009	1,366	330	61.13	3.46	$84,647
Jun 2009	1,180	355	66.16	3.90	$79,452
May 2009	1,516	369	54.74	3.93	$84,434
Apr 2009	1,543	353	46.77	3.59	$73,433
Mar 2009	1,560	372	42.14	4.06	$67,248
Feb 2009	1,447	313	32.81	4.63	$48,926
Jan 2009	1,391	324	35.86	5.37	$51,621
Dec 2008	1,586	389	37.10	5.98	$61,166
Nov 2008	1,453	351	55.49	6.86	$83,035
Oct 2008	1,504	465	75.24	6.92	$116,380
Sep 2008	1,568	412	101.76	7.88	$162,805
Aug 2008	1,416	455	114.22	8.48	$165,595
Jul 2008	1,430	490	131.08	11.39	$193,025
Jun 2008	1,529	601	131.33	13.03	$208,636
May 2008	1,540	434	123.17	11.57	$194,705
Apr 2008	1,554	395	110.31	10.45	$175,551
Mar 2008	1,583	390	101.90	9.66	$165,077
Feb 2008	1,499	448	92.53	8.77	$142,632
Jan 2008	1,554	505	90.38	8.21	$144,594
Dec 2007	1,441	382	88.33	7.30	$130,073
Nov 2007	1,628	404	91.67	7.29	$152,185
Oct 2007	1,673	495	82.85	6.92	$142,034
Sep 2007	1,710	480	75.84	6.24	$132,684
Aug 2007	1,748	417	69.06	6.39	$123,381
Jul 2007	1,623	490	70.90	6.39	$118,201
Jun 2007	1,566	492	62.00	7.55	$100,806
May 2007	1,837	441	58.74	7.85	$111,366
Apr 2007	1,533	387	59.61	7.81	$94,403
Mar 2007	1,691	400	56.92	7.30	$99,173
Feb 2007	1,640	468	55.10	8.22	$94,209
Jan 2007	1,745	396	50.30	6.73	$90,437
Dec 2006	1,808	376	56.65	6.92	$105,025
Nov 2006	1,747	404	54.20	7.62	$97,765
Oct 2006	1,717	406	54.90	6.01	$96,705
Sep 2006	1,575	484	60.08	5.04	$97,064
Aug 2006	1,871	504	68.71	7.34	$132,256
Jul 2006	1,885	490	69.37	6.34	$133,870
Jun 2006	1,773	394	66.28	6.38	$120,030
May 2006	1,738	348	66.01	6.42	$116,961
Apr 2006	1,396	340	64.39	7.36	$92,391
Mar 2006	1,521	328	56.70	7.08	$88,564
Feb 2006	1,394	289	57.59	7.75	$82,521
Jan 2006	1,720	321	60.59	8.93	$107,082
Dec 2005	1,873	316	54.94	13.42	$107,142
Nov 2005	1,596	347	54.69	10.59	$90,959
Oct 2005	1,868	369	58.34	13.80	$114,070
Sep 2005	1,615	368	61.45	12.08	$103,687
Aug 2005	1,852	374	61.51	9.80	$117,581
Jul 2005	1,928	388	55.69	7.84	$110,414
Jun 2005	1,662	347	52.33	7.38	$89,534
May 2005	1,833	330	45.22	6.65	$85,083
Apr 2005	1,564	325	49.20	7.36	$79,341
Mar 2005	1,838	356	50.37	7.15	$95,127
Feb 2005	1,651	254	45.22	6.31	$76,261
Jan 2005	1,893	336	43.16	6.32	$83,826
Dec 2004	1,936	339	39.86	6.75	$79,458
Nov 2004	1,853	342	45.28	6.33	$86,069
Oct 2004	1,838	343	49.70	6.52	$93,583
Sep 2004	2,024	355	43.24	5.28	$89,394
Aug 2004	1,791	329	42.37	5.55	$77,711
Jul 2004	2,120	507	38.28	6.08	$84,238
Jun 2004	1,848	759	36.10	6.43	$71,595
May 2004	2,371	765	37.48	6.49	$93,833
Apr 2004	1,789	411	34.47	5.86	$64,075
Mar 2004	1,962	388	34.36	5.53	$69,560
Feb 2004	1,846	392	32.45	5.51	$62,062
Jan 2004	2,070	432	32.03	6.30	$69,024
Dec 2003	2,163	455	30.26	6.30	$68,320
Nov 2003	1,973	569	28.80	4.60	$59,437
Oct 2003	2,107	597	28.17	4.76	$62,196
Sep 2003	1,863	476	26.31	4.75	$51,276
Aug 2003	1,818	457	29.76	5.13	$56,448
Jul 2003	2,097	442	29.41	5.17	$63,958
Jun 2003	2,006	459	28.56	5.98	$60,038
May 2003	2,027	517	26.59	5.97	$56,986
Apr 2003	2,238	538	26.67	5.41	$62,597
Mar 2003	2,114	555	31.14	6.10	$69,213
Feb 2003	1,772	457	33.48	7.93	$62,949
Jan 2003	2,114	478	30.31	5.58	$66,744
Dec 2002	1,978	417	26.91	4.85	$55,252
Nov 2002	1,973	504	24.66	4.14	$50,739
Oct 2002	2,011	600	26.46	4.23	$55,749
Sep 2002	1,792	586	27.44	3.64	$51,303
Aug 2002	2,023	519	25.96	3.16	$54,159
Jul 2002	1,985	521	24.58	3.06	$50,386
Jun 2002	2,105	526	23.73	3.34	$51,708
May 2002	2,096	521	24.66	3.58	$53,555
Apr 2002	2,057	478	23.65	3.51	$50,327
Mar 2002	1,868	602	22.00	3.10	$42,964
Feb 2002	2,095	624	18.22	2.38	$39,653
Jan 2002	2,420	800	17.17	2.38	$43,452
Dec 2001	2,487	820	16.93	2.36	$44,044
Nov 2001	2,645	801	18.07	2.41	$49,722
Oct 2001	2,432	801	19.78	2.53	$50,131
Sep 2001	2,381	745	24.26	2.25	$59,440
Aug 2001	2,799	836	24.87	3.05	$72,164
Jul 2001	1,926	493	23.93	3.20	$47,665
Jun 2001	1,591	383	24.56	3.82	$40,540
May 2001	1,855	395	25.52	4.31	$49,041
Apr 2001	1,747	338	24.68	5.34	$44,919
Mar 2001	1,865	305	24.54	5.38	$47,407
Feb 2001	1,541	318	27.75	5.77	$44,597
Jan 2001	1,978	345	27.47	8.40	$57,233
Dec 2000	1,745	370	26.88	9.12	$50,281
Nov 2000	1,818	367	32.21	5.66	$60,634
Oct 2000	1,867	416	31.23	5.15	$60,447
Sep 2000	1,860	464	31.87	5.19	$61,685
Aug 2000	1,881	447	29.64	4.54	$57,783
Jul 2000	1,872	473	28.53	4.09	$55,343
Jun 2000	1,883	381	29.30	4.40	$56,847
May 2000	1,972	347	27.26	3.68	$55,034
Apr 2000	1,611	266	24.51	3.12	$40,314
Mar 2000	1,763	307	28.42	2.86	$50,982
Feb 2000	1,568	325	27.62	2.73	$44,194
Jan 2000	1,931	356	25.27	2.48	$49,679
Dec 1999	1,966	365	24.28	2.42	$48,619
Nov 1999	1,726	315	23.19	2.43	$40,793
Oct 1999	1,878	423	20.98	2.80	$40,586
Sep 1999	1,894	399	21.75	2.62	$42,239
Aug 1999	1,861	581	19.26	2.88	$37,514
Jul 1999	2,023	797	17.89	2.37	$38,082
Jun 1999	1,806	664	15.94	2.36	$30,356
May 1999	1,931	704	15.79	2.32	$32,124
Apr 1999	2,566	533	15.10	2.21	$39,923
Mar 1999	1,994	488	12.47	1.84	$25,762
Feb 1999	1,971	358	9.98	1.82	$20,321
Jan 1999	1,804	256	10.38	1.90	$19,212
Dec 1998	1,877	299	9.20	1.77	$17,799
Nov 1998	2,289	312	10.89	2.19	$25,609
Oct 1998	1,865	225	12.42	1.97	$23,606
Sep 1998	2,054	434	12.59	2.08	$26,764
Aug 1998	1,927	498	11.30	1.91	$22,725
Jul 1998	2,138	723	11.74	2.24	$26,718
Jun 1998	2,035	727	11.24	2.24	$24,500
May 1998	1,918	708	12.62	2.21	$25,767
Apr 1998	1,884	721	13.04	2.51	$26,374
Mar 1998	2,117	745	12.80	2.31	$28,818
Feb 1998	1,585	701	13.95	2.30	$23,722
Jan 1998	1,598	844	14.70	2.15	$25,309
Dec 1997	2,053	807	16.32	2.41	$35,451
Nov 1997	1,455	811	18.19	3.09	$28,971
Oct 1997	2,147	984	19.25	3.15	$44,429
Sep 1997	1,910	706	17.74	2.95	$35,970
Aug 1997	2,145	712	17.86	2.55	$40,129
Jul 1997	2,239	740	17.58	2.25	$41,024
Jun 1997	2,118	662	17.24	2.26	$38,009
May 1997	2,235	724	18.97	2.31	$44,069
Apr 1997	2,105	636	17.88	2.08	$38,962
Mar 1997	2,211	637	18.95	1.94	$43,134
Feb 1997	2,046	613	20.49	2.21	$43,275
Jan 1997	2,367	652	23.48	3.54	$57,885
Dec 1996	2,235	668	23.32	—	$52,120
Nov 1996	2,281	618	21.97	—	$50,114
Oct 1996	2,443	722	23.31	—	$56,946
Sep 1996	2,283	684	22.22	—	$50,728
Aug 1996	2,810	692	20.26	—	$56,931
Jul 1996	2,192	616	19.55	—	$42,854
Jun 1996	2,315	643	18.73	—	$43,360
May 1996	2,479	604	19.43	—	$48,167
Apr 1996	2,079	815	21.51	—	$44,719
Mar 1996	2,644	1,212	19.38	—	$51,241
Feb 1996	2,260	1,121	16.98	—	$38,375
Jan 1996	2,478	837	17.07	—	$42,299
Dec 1995	2,327	817	17.19	—	$40,001
Nov 1995	2,460	664	16.00	—	$39,360
Oct 1995	2,382	900	15.43	—	$36,754
Sep 1995	2,213	1,216	16.18	—	$35,806
Aug 1995	2,463	1,350	15.92	—	$39,211
Jul 1995	2,462	1,025	15.24	—	$37,521
Jun 1995	2,395	1,015	16.41	—	$39,302
May 1995	2,448	883	17.56	—	$42,987
Apr 1995	2,476	856	17.73	—	$43,899
Mar 1995	2,626	912	16.44	—	$43,171
Feb 1995	1,956	624	16.58	—	$32,430
Jan 1995	2,520	852	15.92	—	$40,118
Dec 1994	2,264	841	15.03	—	$34,028
Nov 1994	2,552	926	15.90	—	$40,577
Oct 1994	2,343	1,280	15.58	—	$36,504
Sep 1994	2,447	1,053	15.29	—	$37,415
Aug 1994	2,514	1,300	16.13	—	$40,551
Jul 1994	2,437	967	17.56	—	$42,794
Jun 1994	2,550	1,010	17.09	—	$43,580
May 1994	2,499	986	15.88	—	$39,684
Apr 1994	2,435	1,276	14.14	—	$34,431
Mar 1994	2,502	1,853	12.46	—	$31,175
Feb 1994	2,309	790	12.50	—	$28,863
Jan 1994	2,613	828	12.66	—	$33,081
Dec 1993	2,609	846	12.33	—	$32,169
Nov 1993	2,539	797	14.49	—	$36,790
Oct 1993	2,676	1,392	15.85	—	$42,415
Sep 1993	2,423	888	15.03	—	$36,418
Aug 1993	2,679	924	15.66	—	$41,953
Jul 1993	2,658	916	15.46	—	$41,093
Jun 1993	2,688	855	16.79	—	$45,132
May 1993	2,447	843	17.68	—	$43,263
Apr 1993	2,557	1,072	18.05	—	$46,154
Mar 1993	2,666	972	18.14	—	$48,361
Feb 1993	2,337	981	17.90	—	$41,832
Jan 1993	2,734	1,234	16.93	—	$46,287

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.

Apr 2016 — as filed, then multipliedworked

Oil                  991 bbl  × $ 36.56 =    $36,231
Casinghead gas       208 Mcf  × $  1.99 =       $414

────────────────────────────────────────────────────
Month total                                  $36,645

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. 8A/O/19748 is the state's own key, not one this site invented.