COX "B"

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

Operated by GIEBEL PETROLEUM LTD. (P-5 304280) in the GIEBEL (CLEARFORK, LOWER) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 66137District 8AField 34742500OilCasinghead gasSave Export

Value, all time

$917 k

Jan 1993 – Oct 1998

Value, last 12 filed months

$86 k

at the published price for each month

Months reported

no gaps in the span

Streams

oil, casinghead gas

The GIEBEL (CLEARFORK, LOWER) 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 11 leases and 12 wells, and the rule below applies to all of them.

Discovered

1983-05-16

as the register files it

Field class

Oil

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 1991-08-05.

The Commission's schedule remark for this field reads: “8/11/98 PER DOCDET #8A- 0219559.”

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	49,918 bbl	$825,319
Casinghead gas	Production	161,582 Mcf	$92,055
Total			$917,374

124,088 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.

Every month this lease reported (70)

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

70 months


Oct 1998	0	0	12.42	1.97	$0
Sep 1998	0	0	12.59	2.08	$0
Aug 1998	160	470	11.30	1.91	$2,704
Jul 1998	341	1,709	11.74	2.24	$7,827
Jun 1998	358	1,667	11.24	2.24	$7,753
May 1998	265	1,771	12.62	2.21	$7,252
Apr 1998	368	1,801	13.04	2.51	$9,311
Mar 1998	372	1,869	12.80	2.31	$9,078
Feb 1998	252	1,732	13.95	2.30	$7,497
Jan 1998	413	1,973	14.70	2.15	$10,323
Dec 1997	473	1,873	16.32	2.41	$12,235
Nov 1997	376	1,816	18.19	3.09	$12,448
Oct 1997	363	1,977	19.25	3.15	$13,215
Sep 1997	370	1,980	17.74	2.95	$12,414
Aug 1997	547	2,160	17.86	2.55	$15,288
Jul 1997	370	2,113	17.58	2.25	$11,252
Jun 1997	365	1,997	17.24	2.26	$10,800
May 1997	371	2,079	18.97	2.31	$11,837
Apr 1997	548	2,072	17.88	2.08	$14,114
Mar 1997	361	2,244	18.95	1.94	$11,192
Feb 1997	381	1,980	20.49	2.21	$12,174
Jan 1997	558	2,211	23.48	3.54	$20,928
Dec 1996	556	2,270	23.32	—	$12,966
Nov 1996	369	2,037	21.97	—	$8,107
Oct 1996	535	2,119	23.31	—	$12,471
Sep 1996	362	2,282	22.22	—	$8,044
Aug 1996	540	2,345	20.26	—	$10,940
Jul 1996	545	2,460	19.55	—	$10,655
Jun 1996	541	2,580	18.73	—	$10,133
May 1996	518	2,613	19.43	—	$10,065
Apr 1996	722	2,327	21.51	—	$15,530
Mar 1996	538	2,391	19.38	—	$10,426
Feb 1996	554	2,324	16.98	—	$9,407
Jan 1996	731	2,451	17.07	—	$12,478
Dec 1995	749	2,607	17.19	—	$12,875
Nov 1995	555	2,640	16.00	—	$8,880
Oct 1995	756	3,247	15.43	—	$11,665
Sep 1995	552	2,754	16.18	—	$8,931
Aug 1995	750	2,826	15.92	—	$11,940
Jul 1995	742	2,698	15.24	—	$11,308
Jun 1995	736	2,611	16.41	—	$12,078
May 1995	734	2,308	17.56	—	$12,889
Apr 1995	745	2,647	17.73	—	$13,209
Mar 1995	911	2,851	16.44	—	$14,977
Feb 1995	744	2,585	16.58	—	$12,336
Jan 1995	1,086	2,742	15.92	—	$17,289
Dec 1994	905	2,898	15.03	—	$13,602
Nov 1994	1,087	2,832	15.90	—	$17,283
Oct 1994	901	2,905	15.58	—	$14,038
Sep 1994	891	2,864	15.29	—	$13,623
Aug 1994	1,084	3,105	16.13	—	$17,485
Jul 1994	1,251	3,056	17.56	—	$21,968
Jun 1994	900	3,075	17.09	—	$15,381
May 1994	1,594	2,915	15.88	—	$25,313
Apr 1994	913	2,632	14.14	—	$12,910
Mar 1994	910	2,572	12.46	—	$11,339
Feb 1994	1,292	2,418	12.50	—	$16,150
Jan 1994	1,117	2,820	12.66	—	$14,141
Dec 1993	1,101	2,694	12.33	—	$13,575
Nov 1993	923	2,565	14.49	—	$13,374
Oct 1993	1,447	2,670	15.85	—	$22,935
Sep 1993	1,096	2,721	15.03	—	$16,473
Aug 1993	1,453	2,593	15.66	—	$22,754
Jul 1993	1,091	2,494	15.46	—	$16,867
Jun 1993	1,260	2,315	16.79	—	$21,155
May 1993	926	2,325	17.68	—	$16,372
Apr 1993	1,297	2,253	18.05	—	$23,411
Mar 1993	1,079	2,407	18.14	—	$19,573
Feb 1993	903	1,951	17.90	—	$16,164
Jan 1993	1,314	2,293	16.93	—	$22,246

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.

Aug 1998 — as filed, then multipliedworked

Oil                  160 bbl  × $ 11.30 =     $1,808
Casinghead gas       470 Mcf  × $  1.91 =       $896

────────────────────────────────────────────────────
Month total                                   $2,704

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/66137 is the state's own key, not one this site invented.