TROSPER

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

Operated by STRAT LAND EXPLORATION COMPANY (P-5 825420) in the TROSPER, SOUTH (TONKAWA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 6837District 10Field 91468400OilCasinghead gasSave Export

Value, all time

$3.0 M

Jan 1993 – Nov 2010

Value, last 12 filed months

at the published price for each month

Months reported

215

no gaps in the span

Streams

oil, casinghead gas

The TROSPER, SOUTH (TONKAWA) 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 3 leases and 5 wells, and the rule below applies to all of them.

Discovered

1992-02-25

as the register files it

Field class

Oil

the register's own label

Between wells

—

no field rule filed

From a lease line

—

no field rule filed

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	114,028 bbl	$2,516,835
Casinghead gas	Production	338,814 Mcf	$510,919
Total			$3,027,754

191,161 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 (3)

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 36.1623, -100.1715. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.2 miles.

36.16210, -100.17122 · 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%

3 of 3 wells

With a plug date

100.0%

3 of 3 wells

Median depth

7,250 ft

3 wells filed one

Completion to plug

17.8 years

median over 3 wells

What the state filed about each well

On the RRC proration schedule

3100.0%

A plug date is filed

3100.0%

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

3100.0%

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 4,500 and 7,250 ft, median 7,250 ft, over the 3 wells that filed a depth.

Completions filed

Feb 1992 – Jun 1993

3 of 3 wells

Plug dates filed

Jul 2010

3 of 3 wells

Last completion to plug: a median of 17.8 years across the 3 wells that filed both dates, with the middle half between 17.5 years and 18.2 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells


42-29532013	4	4,500 ft	Jun 1993	Jul 2010	Yes
42-29531991	2	7,250 ft	Sep 1992	Jul 2010	Yes
42-29531971	1	7,250 ft	Feb 1992	Jul 2010	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 (215)

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

215 months


Nov 2010	0	0	80.84	3.80	$0
Oct 2010	0	0	78.10	3.51	$0
Sep 2010	0	0	72.63	3.98	$0
Aug 2010	0	0	73.68	4.42	$0
Jul 2010	0	0	72.55	4.74	$0
Jun 2010	0	0	70.36	4.91	$0
May 2010	0	0	71.12	4.24	$0
Apr 2010	0	0	81.69	4.12	$0
Mar 2010	0	0	78.39	4.39	$0
Feb 2010	0	0	73.58	5.44	$0
Jan 2010	0	0	74.36	5.96	$0
Dec 2009	0	0	71.44	5.48	$0
Nov 2009	0	0	74.59	3.75	$0
Oct 2009	0	0	72.54	4.11	$0
Sep 2009	185	0	65.54	3.06	$12,125
Aug 2009	0	0	67.42	3.22	$0
Jul 2009	0	0	61.13	3.46	$0
Jun 2009	0	0	66.16	3.90	$0
May 2009	0	0	54.74	3.93	$0
Apr 2009	0	0	46.77	3.59	$0
Mar 2009	0	0	42.14	4.06	$0
Feb 2009	0	0	32.81	4.63	$0
Jan 2009	0	0	35.86	5.37	$0
Dec 2008	0	0	37.10	5.98	$0
Nov 2008	0	0	55.49	6.86	$0
Oct 2008	0	0	75.24	6.92	$0
Sep 2008	0	0	101.76	7.88	$0
Aug 2008	0	0	114.22	8.48	$0
Jul 2008	0	0	131.08	11.39	$0
Jun 2008	0	0	131.33	13.03	$0
May 2008	0	0	123.17	11.57	$0
Apr 2008	181	0	110.31	10.45	$19,966
Mar 2008	0	0	101.90	9.66	$0
Feb 2008	0	0	92.53	8.77	$0
Jan 2008	186	0	90.38	8.21	$16,811
Dec 2007	0	0	88.33	7.30	$0
Nov 2007	0	0	91.67	7.29	$0
Oct 2007	0	0	82.85	6.92	$0
Sep 2007	0	0	75.84	6.24	$0
Aug 2007	0	0	69.06	6.39	$0
Jul 2007	0	0	70.90	6.39	$0
Jun 2007	0	0	62.00	7.55	$0
May 2007	264	0	58.74	7.85	$15,507
Apr 2007	0	0	59.61	7.81	$0
Mar 2007	0	23	56.92	7.30	$168
Feb 2007	271	53	55.10	8.22	$15,368
Jan 2007	542	45	50.30	6.73	$27,565
Dec 2006	271	31	56.65	6.92	$15,567
Nov 2006	261	341	54.20	7.62	$16,744
Oct 2006	266	50	54.90	6.01	$14,904
Sep 2006	0	47	60.08	5.04	$237
Aug 2006	532	252	68.71	7.34	$38,403
Jul 2006	266	242	69.37	6.34	$19,987
Jun 2006	265	214	66.28	6.38	$18,930
May 2006	256	197	66.01	6.42	$18,164
Apr 2006	134	21	64.39	7.36	$8,783
Mar 2006	229	7	56.70	7.08	$13,034
Feb 2006	0	62	57.59	7.75	$481
Jan 2006	247	59	60.59	8.93	$15,493
Dec 2005	0	36	54.94	13.42	$483
Nov 2005	0	0	54.69	10.59	$0
Oct 2005	0	0	58.34	13.80	$0
Sep 2005	0	0	61.45	12.08	$0
Aug 2005	392	25	61.51	9.80	$24,357
Jul 2005	0	29	55.69	7.84	$227
Jun 2005	231	12	52.33	7.38	$12,177
May 2005	0	45	45.22	6.65	$299
Apr 2005	243	178	49.20	7.36	$13,266
Mar 2005	0	197	50.37	7.15	$1,410
Feb 2005	192	190	45.22	6.31	$9,882
Jan 2005	527	267	43.16	6.32	$24,433
Dec 2004	254	408	39.86	6.75	$12,879
Nov 2004	261	494	45.28	6.33	$14,945
Oct 2004	252	649	49.70	6.52	$16,753
Sep 2004	492	595	43.24	5.28	$24,418
Aug 2004	254	567	42.37	5.55	$13,909
Jul 2004	492	571	38.28	6.08	$22,308
Jun 2004	518	636	36.10	6.43	$22,791
May 2004	486	543	37.48	6.49	$21,742
Apr 2004	265	400	34.47	5.86	$11,478
Mar 2004	529	815	34.36	5.53	$22,684
Feb 2004	718	570	32.45	5.51	$26,440
Jan 2004	516	558	32.03	6.30	$20,043
Dec 2003	292	411	30.26	6.30	$11,426
Nov 2003	467	402	28.80	4.60	$15,297
Oct 2003	258	495	28.17	4.76	$9,624
Sep 2003	529	565	26.31	4.75	$16,601
Aug 2003	528	525	29.76	5.13	$18,406
Jul 2003	788	654	29.41	5.17	$26,557
Jun 2003	265	449	28.56	5.98	$10,255
May 2003	534	668	26.59	5.97	$18,189
Apr 2003	531	681	26.67	5.41	$17,844
Mar 2003	799	681	31.14	6.10	$29,032
Feb 2003	538	714	33.48	7.93	$23,671
Jan 2003	0	701	30.31	5.58	$3,913
Dec 2002	711	691	26.91	4.85	$22,487
Nov 2002	529	1,087	24.66	4.14	$17,542
Oct 2002	527	804	26.46	4.23	$17,345
Sep 2002	514	1,174	27.44	3.64	$18,372
Aug 2002	528	1,063	25.96	3.16	$17,070
Jul 2002	528	1,103	24.58	3.06	$16,355
Jun 2002	526	1,037	23.73	3.34	$15,944
May 2002	532	985	24.66	3.58	$16,649
Apr 2002	531	1,029	23.65	3.51	$16,172
Mar 2002	533	908	22.00	3.10	$14,543
Feb 2002	531	766	18.22	2.38	$11,495
Jan 2002	537	1,067	17.17	2.38	$11,755
Dec 2001	404	1,010	16.93	2.36	$9,228
Nov 2001	766	2,500	18.07	2.41	$19,855
Oct 2001	530	2,271	19.78	2.53	$16,226
Sep 2001	536	2,318	24.26	2.25	$18,222
Aug 2001	774	2,131	24.87	3.05	$25,756
Jul 2001	256	2,103	23.93	3.20	$12,850
Jun 2001	248	1,561	24.56	3.82	$12,060
May 2001	776	2,385	25.52	4.31	$30,076
Apr 2001	525	2,104	24.68	5.34	$24,183
Mar 2001	803	2,198	24.54	5.38	$31,523
Feb 2001	802	1,671	27.75	5.77	$31,892
Jan 2001	538	1,736	27.47	8.40	$29,359
Dec 2000	535	1,825	26.88	9.12	$31,029
Nov 2000	796	2,328	32.21	5.66	$38,811
Oct 2000	793	2,117	31.23	5.15	$35,658
Sep 2000	527	2,280	31.87	5.19	$28,621
Aug 2000	794	2,666	29.64	4.54	$35,640
Jul 2000	792	2,256	28.53	4.09	$31,822
Jun 2000	756	1,961	29.30	4.40	$30,774
May 2000	798	2,051	27.26	3.68	$29,301
Apr 2000	537	2,083	24.51	3.12	$19,653
Mar 2000	777	1,391	28.42	2.86	$26,060
Feb 2000	595	1,419	27.62	2.73	$20,303
Jan 2000	646	1,203	25.27	2.48	$19,308
Dec 1999	402	1,209	24.28	2.42	$12,691
Nov 1999	534	1,874	23.19	2.43	$16,945
Oct 1999	796	2,076	20.98	2.80	$22,521
Sep 1999	460	384	21.75	2.62	$11,011
Aug 1999	260	1	19.26	2.88	$5,010
Jul 1999	0	935	17.89	2.37	$2,218
Jun 1999	1,046	2,491	15.94	2.36	$22,557
May 1999	532	2,569	15.79	2.32	$14,363
Apr 1999	525	1,923	15.10	2.21	$12,174
Mar 1999	1,043	1,751	12.47	1.84	$16,225
Feb 1999	270	1,045	9.98	1.82	$4,594
Jan 1999	532	1,455	10.38	1.90	$8,287
Dec 1998	534	2,095	9.20	1.77	$8,628
Nov 1998	536	3,106	10.89	2.19	$12,626
Oct 1998	772	2,460	12.42	1.97	$14,433
Sep 1998	776	1,920	12.59	2.08	$13,768
Aug 1998	778	1,868	11.30	1.91	$12,354
Jul 1998	776	1,838	11.74	2.24	$13,222
Jun 1998	260	1,524	11.24	2.24	$6,332
May 1998	0	14	12.62	2.21	$31
Apr 1998	0	40	13.04	2.51	$100
Mar 1998	267	1,288	12.80	2.31	$6,392
Feb 1998	789	2,592	13.95	2.30	$16,966
Jan 1998	793	2,146	14.70	2.15	$16,281
Dec 1997	803	2,388	16.32	2.41	$18,863
Nov 1997	777	2,464	18.19	3.09	$21,743
Oct 1997	777	1,274	19.25	3.15	$18,970
Sep 1997	264	2,224	17.74	2.95	$11,255
Aug 1997	981	3,165	17.86	2.55	$25,606
Jul 1997	766	3,389	17.58	2.25	$21,081
Jun 1997	791	3,397	17.24	2.26	$21,305
May 1997	779	2,987	18.97	2.31	$21,673
Apr 1997	789	2,833	17.88	2.08	$20,008
Mar 1997	528	3,340	18.95	1.94	$16,482
Feb 1997	1,058	2,898	20.49	2.21	$28,071
Jan 1997	789	3,033	23.48	3.54	$29,262
Dec 1996	514	2,090	23.32	—	$11,986
Nov 1996	736	3,111	21.97	—	$16,170
Oct 1996	1,052	3,252	23.31	—	$24,522
Sep 1996	253	2,337	22.22	—	$5,622
Aug 1996	776	3,085	20.26	—	$15,722
Jul 1996	798	3,418	19.55	—	$15,601
Jun 1996	1,156	3,160	18.73	—	$21,652
May 1996	763	4,469	19.43	—	$14,825
Apr 1996	803	2,824	21.51	—	$17,273
Mar 1996	1,022	2,657	19.38	—	$19,806
Feb 1996	1,001	3,412	16.98	—	$16,997
Jan 1996	783	3,459	17.07	—	$13,366
Dec 1995	502	3,088	17.19	—	$8,629
Nov 1995	1,037	3,678	16.00	—	$16,592
Oct 1995	1,042	4,659	15.43	—	$16,078
Sep 1995	1,035	3,997	16.18	—	$16,746
Aug 1995	1,016	4,009	15.92	—	$16,175
Jul 1995	1,017	3,328	15.24	—	$15,499
Jun 1995	713	2,904	16.41	—	$11,700
May 1995	1,265	3,598	17.56	—	$22,213
Apr 1995	982	4,097	17.73	—	$17,411
Mar 1995	1,075	3,390	16.44	—	$17,673
Feb 1995	749	3,301	16.58	—	$12,418
Jan 1995	1,255	2,881	15.92	—	$19,980
Dec 1994	1,072	4,125	15.03	—	$16,112
Nov 1994	1,310	4,229	15.90	—	$20,829
Oct 1994	1,063	4,374	15.58	—	$16,562
Sep 1994	1,209	3,788	15.29	—	$18,486
Aug 1994	1,049	3,928	16.13	—	$16,920
Jul 1994	1,242	4,090	17.56	—	$21,810
Jun 1994	1,019	3,818	17.09	—	$17,415
May 1994	1,304	5,174	15.88	—	$20,708
Apr 1994	1,204	3,514	14.14	—	$17,025
Mar 1994	1,426	3,819	12.46	—	$17,768
Feb 1994	1,122	2,041	12.50	—	$14,025
Jan 1994	1,524	5,086	12.66	—	$19,294
Dec 1993	1,491	5,321	12.33	—	$18,384
Nov 1993	1,702	4,592	14.49	—	$24,662
Oct 1993	1,506	7,984	15.85	—	$23,870
Sep 1993	1,680	5,265	15.03	—	$25,250
Aug 1993	938	4,098	15.66	—	$14,689
Jul 1993	1,552	7,687	15.46	—	$23,994
Jun 1993	1,992	8,903	16.79	—	$33,446
May 1993	1,843	9,282	17.68	—	$32,584
Apr 1993	2,196	9,328	18.05	—	$39,638
Mar 1993	1,665	292	18.14	—	$30,203
Feb 1993	890	175	17.90	—	$15,931
Jan 1993	563	44	16.93	—	$9,532

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.

Sep 2009 — as filed, then multipliedworked

Oil                  185 bbl  × $ 65.54 =    $12,125
Casinghead gas         0 Mcf  × $  3.06 =         $0

────────────────────────────────────────────────────
Month total                                  $12,125

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. 10/O/6837 is the state's own key, not one this site invented.