EOG - Round Prairie

Located west of Williston, near the Montana state line, just north of US Highway 2. 

Updates

September 6, 2023: cash offer from Dakota Energy --

• $4,489, 1.71 net acres
• price per acre: $2,625
• T154N-R103W-18: lots 3 (36.62, 4 (36.66), E2SW4, E2 less a 3.00 acrre tract in the NE4NE4 more fully described in Book 49, Page 340.
• at the time of this offer, only one producing well in this spacing unit; and, no pending permits for this drilling unit.
  

Original Post

The wells:

• 19927, 725, Short Prairie 8-1224H, Round Prairie, t11/12; cum 250K 5/19;
• Deed associated with well according to EOG:
• Sections 13 (all) / 14 (all) -T154N-R104W; 1280 acres
• Decimal: 0.00002118
• 19478, 1,458, EOG, Round Prairie 10-1819H, Round Prairie, t1/11; cum 209K 5/19
• Deed associated with well according to EOG:
• Sections 18 (all) / 19 (all)-T154N-R103W; 1253.60 acres 
• Decimal: 0.00012782

Recent production for each of these wells:

19927:

Pool	Date	Days	BBLS Oil	Runs	BBLS Water	MCF Prod	MCF Sold	Vent/Flare
BAKKEN	5-2019	31	1018	924	1871	851	598	9
BAKKEN	4-2019	30	1008	1108	1821	873	618	15
BAKKEN	3-2019	31	898	887	1814	791	476	70
BAKKEN	2-2019	28	667	672	1554	594	370	0
BAKKEN	1-2019	31	624	488	1724	528	258	25
BAKKEN	12-2018	28	449	636	1553	339	115	0
BAKKEN	11-2018	0	0	0	0	0	0	0
BAKKEN	10-2018	18	371	219	1037	356	175	37
BAKKEN	9-2018	26	586	841	1577	547	342	0
BAKKEN	8-2018	31	898	703	1815	799	550	15
BAKKEN	7-2018	31	866	749	1832	831	288	295
BAKKEN	6-2018	30	890	1154	1791	822	556	26
BAKKEN	5-2018	31	851	853	1888	782	483	65
BAKKEN	4-2018	30	835	721	1667	731	464	31
BAKKEN	3-2018	31	822	799	1624	660	412	0
BAKKEN	2-2018	28	824	901	1527	668	392	52

19478:

Pool	Date	Days	BBLS Oil	Runs	BBLS Water	MCF Prod	MCF Sold	Vent/Flare
BAKKEN	5-2019	31	1025	1066	1558	848	587	13
BAKKEN	4-2019	14	215	0	871	160	53	0
BAKKEN	3-2019	13	326	430	365	369	265	0
BAKKEN	2-2019	28	715	646	800	769	545	0
BAKKEN	1-2019	31	794	869	884	899	613	38
BAKKEN	12-2018	31	791	912	914	903	655	0
BAKKEN	11-2018	30	776	677	844	809	410	159
BAKKEN	10-2018	31	742	650	890	841	428	169
BAKKEN	9-2018	30	684	693	884	785	545	0
BAKKEN	8-2018	31	715	708	908	896	609	39
BAKKEN	7-2018	31	728	682	871	832	391	196
BAKKEN	6-2018	30	712	1015	870	856	609	7
BAKKEN	5-2018	31	753	887	900	896	638	10
BAKKEN	4-2018	30	750	649	990	831	574	17
BAKKEN	3-2018	31	700	567	787	805	557	0
BAKKEN	2-2018	28	619	458	791	655	413	18

The graphic:

Let's Do The Math -- An Example -- July 28, 2019

Updates

August 2, 2019: since the original post, three more Zavanna wells have been added that will include mineral acres in sections 16/21-155-100; see bottom of original post where #36544, #36543, and #36542 have been added.

Original Post

Disclaimer: I often make simple arithmetic errors and don't completely understand royalties.

Disclaimer: in a long note like this, there will be typographical and factual errors.

Facts:

• reader has 16.67% base royalty in 1.0000 net mineral acre in the NW quadrant of section 16 in T155N-R100W
• the reader is being offered $5,333.33 for that interest
• this particular mineral unit is located in the "best Bakken"

Assumptions:

• assume: almost all of the wells will be spaced at the current NDIC standard of1280-acre;
• assume: there will be some section/line wells spaced at 2560-acre units but we will ignore those for now

Let's do the math.

First step:

• the reader is being offered $5,333.33 for that 16.67% of that one net mineral acre
• the reader has only one-sixth of that mineral acre (16.67%)
• to acquire the entire one net mineral acre, the buyer must be assessing the value of that one acre at $32,000 (6 x $5,333.33)
• again, to repeat: the buyer is valuing that one mineral acre at $32,000

Second step:

• a standard drilling unit in the ND-Bakken is 1,280 acres
• to buy the entire drilling unit, the buyer values the drilling unit at $40,320,000 ($32,000 x 1280 acres)
• again, to repeat, the entire drilling unit (1280 acres) is being valued at $40 million (rounded)

Third step:

• assume one nets $50/bbl of crude oil from each well drilled in this 1,280-acre drilling unit
• how many bbls of $50-oil will yield $40 million? 800,000 bbls
• let's check that: 800,000 bbls x $50 would yield $40 million

Fourth step:

• how many wells will produce 800,000 bbls in the best Bakken?
• right now, operators expect no less than 750,000 bbls / well in the best Bakken, and the current data suggest new wells now being drilled in the Bakken will eventually produce 1.5 million bbls of oil
• therefore, the buyer is offering the equivalent of one well in this drilling unit
• fact: Zavanna is currently drilling four new wells in this drilling unit (see graphic below)
• fact: there is already one producing well in this drilling unit, on the same pad, and a very, very good well
• assumption: there will eventually be eight wells in this drilling unit; perhaps as many as 12; possibly as many as 24, but certainly more than two

Bottom line for this section:

• assuming I did the math correctly, the buyer is offering the reader the value of one well in this drilling unit

Important note: right now (July 28, 2019) there are four wells being drilled that apply to the reader's lease (see graphic below); a fifth well is already producing (it was drilled in 2012). It appears that three of the new wells are the standard 1280-acre spacing; the fourth well looks like it will be 2560-acre spacing which cuts one 's interest in this well by half compared to the standard 1280-acre well.

Pie in the sky, idle rambling, back of the envelope. Let's assume:

• 1280-acre spacing
• 12 wells -- very, very conservative by the way
• EURs of 1.0 million -- somewhat conservative
• 12 x 1 = 12 million bbls EUR for those 12 wells
• $40/bbls = $480 million at the wellhead 
• up above, I showed $32,000 / acre or times 1280 acres = $40 million for the drilling unit is what was being offered

***************************************

Decimal Units

One net mineral acre in a 1280-acre drilling unit = 0.00078125

A one-sixth (16.67%) base royalty of that interest = 0.000130208333

Example:

• assumption: each new well will produce 150,000 bbls of crude oil in the first year
• assumption: four new wells, therefore, will produce 600,000 bbls of crude oil in the first year 
• although WTI is priced at $50, Bakken oil is selling for about $40/bbl
• now, 600,000 x 0.000130208333 = 78 bbls
• 78 bbls x $40 = $3,120 for those four new wells in the first year
• if three wells are 1280-acre spacing and one well is 2560-acre spacing, then the amount should change to $2,730 / first year for the four new wells 
• there is an existing producing well, #21226, which has not been factored into this 

Bottom line:

• when the new wells finally go into production, the reader might see $3,000 in royalty payment the first year and then a decline after that. The decline will be slow the first year or so but then will decline quickly
• the wells could be completed / fracked by the end of the year, though the company can wait as long as two years to complete the wells
• even if things are "expedited," the reader should not expect to see any "new" money from these new wells for six to 12 months

***************************************

The Graphics

The wells:

• 21226, 996, Zavanna, Panther 16-21H, Stony Creek, t4/12; cum 426K 5/19; off line as of 6/19; remains off line 10/19;
• 36418, SI/NC, Zavanna, Panther 16-22 5TFH XE, API: 33-105-05170; Stony Creek, the name suggests this is a Three Forks well on 2560-acre spacing, which if accurate, would cut one's interest in half compared to the standard 1280-acre unit; not fracked as of 10/19;
  noted to be on SI/NC in late November, 2019;
• 36419, SI/NC, Zavanna, Panther 16-21 4H, Stony Creek, the name suggests this is a middle Bakken well on 1280-acre spacing; not fracked as of 10/19; noted to be on SI/NC in late November, 2019;
• 36421 SI/NC, Zavanna, Panther 16-21 2TFH, Stony Creek, noted to be on SI/NC in late September, 2019; not fracked as of 10/19; not fracked as of 10/19;
• 36420, SI/NC, Zavanna, Panther 16-21 3TFH, Stony Creek, noted to be on SI/NC in late September, 2019; not fracked as of 10/19;
• 36544, drl, Zavanna, Blue Heeler 20-16-4H, this one was added August 2, 2019, as a new permit; 1280-acre spacing according to the permit; sections 16/21; noted to be on drl status in late September, 2019;
• 36543, 2 sections; drl, Zavanna, Blue Heeler 20-16 3TFH, added August 2, 2019; drl status noted December, 2019;
• 36542, 4 sections; drl, Zavanna, Blue Heeler 20-17 2H XE, added August 2, 2019; drl status noted December, 2019;

Permit application for #36544:

Permit application for #36543:

Permit application for #36542:

The Gilbertson Well In McKenzie County

This was originally posted elsewhere on September 15, 2015. Re-posted without any changes on July 27, 2019.

Updates

July 28, 2019: production data updated. No additional wells permitted or drilled since the original post. 

***************************************
Original Post

This may be all wrong, but I was told "a reader got a new well" in North Dakota. I was told it was a "Gilbertson well in McKenzie County."

I don't know any more than that.

In the Charlson oil field in the Bakken, about 25 miles northeast of Watford City, there are a group of Gilbertson wells. I don't have the file number of the "new" well but if the reader can provide me that number, I can confirm which well it is.

This is a screenshot of the oil map of North Dakota. The Gilbertson wells are in the Charlson oil field about 25 miles northeast of Watford City and very, very difficult to get to, simply because there are no major roads out there:

This is a zoomed-in view of the section in which the Gilbertson wells are located: section 26, T153N R95W. Note there are two Gilbertson well pads. I don't know which well is the "new" well. One pad is a four-well pad; the other pad is a three-well pad. These wells are all short laterals, and they are all spaced at 640 acres.

This is a zoomed-in view of the four-well pad:

This is a zoomed-in view of the three-well pad:

To be continued once I confirm that these are the correct Gilbertson wells.

The Gilbertson wells:

• 28154, 1,361, XTO, Gilbertson 34X-26BXC, Charlson, t11/14; cum 184K 5/19;
• 28155, 1,784, XTO, Gilbertson 34X-26G, Charlson, t11/14; cum 197K 5/19;
• 19544, 830, XTO, Gilbertson 34-26NEH, Charlson, t6/11; cum 254K 5/19;

• 18703, 888, XTO, Gilbertson 11-26H, Charlson, t6/10; cum 285K 5/19;
• 27928, 1,543, XTO, Gilbertson 11X-26F, Charlson, t11/14; cum131K 5/19;
• 27927, 1,060, XTO, Gilbertson 11X-26B, Charlson, t11/14; cum 116K 5/19;
• 27926, 844, XTO, Gilbertson 11X-26FXG, Charlson, t11/14; cum 122K 5/19;

Citation Oil, Brakken 24-30, #10279, A Madison Well

Decimal unit: 0.00025327

• for every 1,000 bbls: 0.25 bbls

The graphic:

The well:

• 10279, 155, Citation Oil & Gas, Brakken 24-30, Catwalk, Madison formation, t9/83; cum 152K 5/19; recent production:

Pool	Date	Days	BBLS Oil	Runs	BBLS Water	MCF Prod	MCF Sold	Vent/Flare
MADISON	5-2019	31	206	211	515	116	0	31
MADISON	4-2019	30	166	252	417	110	0	30
MADISON	3-2019	31	264	224	497	230	0	150
MADISON	2-2019	24	169	206	483	230	0	150
MADISON	1-2019	21	132	0	326	230	0	150
MADISON	12-2018	31	183	213	436	230	0	150
MADISON	11-2018	30	158	240	397	230	0	150
MADISON	10-2018	31	186	219	463	230	0	150
MADISON	9-2018	30	186	202	473	230	0	150

Links Of Interest For Mineral Owners

Division Orders.

• first link here
• another link here, PDC Energy
• basic information, Oklahoma; will download as a pdf 

Mineral Owners:

• first link here

Charlson Oil Field

Originally posted February 16, 2010.

Charlson Field

Geologists, operators and drillers talk about targeting a certain formation, such as the Bakken or the Three Forks Sanish. However, when completed, the NDIC reports which pool the wells targeted which is an administrative term, and not a geologic formation term.

The NDIC administratively places all Bakken and all TFS wells in the "Bakken Pool." When the daily activity report states the "Bakken Pool" you cannot know from that which geologic formation was targeted; that information comes from other sources including press releases from the oil company operating the rig.

The "Bakken" formation is divided geologically into three formations, the Upper, the Middle, and the Lower. The Upper Bakken was the target during the 1990's boom; the Middle Bakken is the target now.

The Three Forks Sanish is divided into the Upper and the Lower. I forget, but I believe I first read it from an EOG conference call (it could have been Hess), the drillers in the current boom are targeting the Upper and the Lower Three Forks Sanish.

One can see the cumulative oil and gas production from HORIZONTAL wells by formation at the NDIC site. Click here and use the drop down menu to find the formation you are interested in.

That was all background to explain why I was interested in the Charlson field.

The Charlson field: 

My introduction to the Charlson occurred when I first became interested in Denbury.

The Charlson field is unique among many of the fields I follow because it appears that the formation being targeted in the current boom in the Charlson is almost exclusively the Three Forks Sanish.

The Charlson is a very small field, but historically, very, very active. It is only 48 sections, not even two full townships in size, but yet when you go to the GIS map server, it is so full of old vertical wells, it's hard to see "new" activity.

The Charlson is directly west of the Sanish oil field, on the other side of the river. There are no towns or hamlets in this small field.

Currently  there are 20 producing horizontal wells (and lots of vertical wells, as well as many abandoned wells), 8 wells on the confidential list, and one well being drilled.

But this is an interesting bit of trivia:

The most successful well to date in North Dakota sits in the Charlson: file #16059, the USA 2D-3-1H, a Petro-Hunt, LLC, well that was spudded in October, 2006. To date, it has produced 915,000 barrels of oil. That well targeted the Three Forks Sanish. [At $60/barrel = almost $55 million in about 3 years]. UPDATE: USA 2D-3-1H hit a record this past June, 2010: one million bbls of oil cumulative. 

*************************************

The Charlson Oil Field

The Graphics

17799 -- Guadalupe 11-23H

This post relates to an earlier post. This well is in Charlson oil field.

The well:

• 17799, 457, BR, Guadalupe 11-23H, Charlson, t3/09; cum 510K 5/19;

Explanation of that shorthand:

• 17799: the file number / permit number for the well
• 457: the initial production provided by the operator after the well well first drilled and completed
• BR: the current operator -- Burlington Resources
• Guadalupe 11-23H: the official name of this well
• Charlson: the oil field inside the Bakken -- the Charlson-Bakken pool
• t3/09: the test date -- March, 2009
• cum 510K 5/19: cumulative (or total) production since the well was first drilled up to that date, May, 2019; I always round the number; in this case, the actual production, 510,465 bbls of crude oil have been produced from this well since March, 2009; the production data is delayed by two months -- so, today, July 19, 2019, the most recent data is as of May, 2019; in addition, this well has also produced 591,435,000 cubic feet of gas which is equivalent to about 100,000 "equivalent" bbls of oil -- but not all of it was sold; much of it would have been flared;

Notes on the production profile below:

• start at the bottom and then scroll up
• note that the well produced about 9,000 bbls in the early months of production; then declined rapidly to about 2,000 bbls / month; and then leveled out at about 1,0000 bbls / month
• in July, 2018, this well had a huge jump in production; it produced as much as 30,000 bbls / month -- an incredible well and an incredible jump in production
• there is no evidence that this well was re-fracked
• if this well was not re-fracked, it had a huge jump in production because of the effect of fracking neighboring wells
• the well started out as a good well at the time, but not a great well by current standards
• however, at almost no additional cost to the operator, it has become a great well due to fracking neighboring wells

Production profile:

Pool	Date	Days	BBLS Oil	Runs	BBLS Water	MCF Prod	MCF Sold	Vent/Flare
BAKKEN	5-2019	23	14244	14229	1350	24852	24066	729
BAKKEN	4-2019	30	22406	22430	1996	23490	22854	562
BAKKEN	3-2019	31	29673	29576	2600	25049	24972	0
BAKKEN	2-2019	28	28054	28231	2077	27395	27325	0
BAKKEN	1-2019	31	29921	30008	2390	29361	29284	0
BAKKEN	12-2018	30	29567	29553	2462	27767	27693	0
BAKKEN	11-2018	30	28924	28924	2715	26246	26172	0
BAKKEN	10-2018	31	26945	26520	2271	27609	27532	0
BAKKEN	9-2018	30	25088	25570	2155	26978	26904	0
BAKKEN	8-2018	31	28814	28578	2947	32269	32192	0
BAKKEN	7-2018	31	16221	15949	2552	17136	17059	0
BAKKEN	6-2018	0	0	0	0	0	0	0
BAKKEN	5-2018	0	0	0	0	0	0	0
BAKKEN	4-2018	30	797	1173	73	1025	951	0
BAKKEN	3-2018	31	1376	1157	112	1981	1904	0
BAKKEN	2-2018	28	1290	1186	123	1742	1672	0
BAKKEN	1-2018	31	1446	1641	168	1527	1450	0
BAKKEN	12-2017	31	1545	1410	145	2116	2039	0
BAKKEN	11-2017	30	2024	1821	1074	2437	2363	0
BAKKEN	10-2017	14	513	468	46	693	658	0
BAKKEN	9-2017	30	1002	1179	492	1677	1603	0
BAKKEN	8-2017	31	1631	1660	982	2580	2503	0
BAKKEN	7-2017	30	1488	1364	427	2652	2578	0
BAKKEN	6-2017	30	1530	1568	256	1875	1801	0
BAKKEN	5-2017	31	1794	1999	302	2430	2353	0
BAKKEN	4-2017	28	1543	1558	351	2398	2328	0
BAKKEN	3-2017	31	1916	1605	482	2264	2187	0
BAKKEN	2-2017	27	1951	2329	337	2651	2584	0
BAKKEN	1-2017	22	2008	2101	220	2273	2218	0
BAKKEN	12-2016	25	934	470	130	1330	636	634
BAKKEN	11-2016	23	1115	1379	665	3015	1481	1477
BAKKEN	10-2016	31	2324	2290	606	3133	3056	0
BAKKEN	9-2016	30	1637	1577	1119	1390	1316	0
BAKKEN	8-2016	31	1955	1995	1313	2455	2378	0
BAKKEN	7-2016	31	1933	2009	967	2602	2525	0
BAKKEN	6-2016	30	2046	1785	752	2353	2278	0
BAKKEN	5-2016	29	2438	2735	562	2988	2916	0
BAKKEN	4-2016	29	2156	1821	287	2657	2585	0
BAKKEN	3-2016	31	2513	2614	449	3171	3066	28
BAKKEN	2-2016	29	2536	2374	466	3004	2932	0
BAKKEN	1-2016	31	2996	3053	757	3288	3211	0
BAKKEN	12-2015	15	1809	1660	763	2203	1957	209
BAKKEN	11-2015	0	0	0	0	0	0	0
BAKKEN	10-2015	19	879	928	227	1661	1614	0
BAKKEN	9-2015	30	1378	1620	217	2050	1976	0
BAKKEN	8-2015	31	1556	1581	194	980	809	94
BAKKEN	7-2015	31	1804	1780	318	2425	2225	123
BAKKEN	6-2015	20	1463	1120	404	1395	641	704
BAKKEN	5-2015	0	0	0	0	0	0	0
BAKKEN	4-2015	19	759	1172	25	1020	973	0
BAKKEN	3-2015	31	722	478	47	591	487	27
BAKKEN	2-2015	28	1022	946	40	842	762	10
BAKKEN	1-2015	31	1132	1213	60	811	734	0
BAKKEN	12-2014	31	762	960	67	1007	845	85
BAKKEN	11-2014	30	3311	3053	186	4117	3818	224
BAKKEN	10-2014	31	1348	1674	140	1534	1457	0
BAKKEN	9-2014	30	1459	1154	164	1459	1322	63
BAKKEN	8-2014	29	1198	1146	47	1041	969	0
BAKKEN	7-2014	31	1131	1382	68	1178	1101	0
BAKKEN	6-2014	30	1353	1380	76	1723	809	840
BAKKEN	5-2014	20	1263	932	56	637	587	0
BAKKEN	4-2014	24	1061	1164	123	93	0	33
BAKKEN	3-2014	31	1051	931	89	228	0	151
BAKKEN	2-2014	17	1281	1388	29	1248	373	833
BAKKEN	1-2014	30	1776	1681	225	3327	253	2999
BAKKEN	12-2013	31	1808	2097	120	791	0	714
BAKKEN	11-2013	30	899	921	42	1194	279	840
BAKKEN	10-2013	31	1661	1630	81	2438	1792	569
BAKKEN	9-2013	30	1001	927	84	1511	1029	407
BAKKEN	8-2013	31	1771	1623	51	3222	1836	1309
BAKKEN	7-2013	31	904	938	39	1258	763	418
BAKKEN	6-2013	30	1494	1381	61	2332	1627	630
BAKKEN	5-2013	30	1206	1610	80	1787	1420	293
BAKKEN	4-2013	30	2164	1833	158	3384	2470	839
BAKKEN	3-2013	31	1592	1682	71	1960	130	1753
BAKKEN	2-2013	21	1574	1622	23	1421	71	1297
BAKKEN	1-2013	29	1313	996	37	1079	378	629
BAKKEN	12-2012	31	728	937	4	973	511	385
BAKKEN	11-2012	30	1198	1010	32	1729	1204	451
BAKKEN	10-2012	31	1221	1570	188	1852	1317	458
BAKKEN	9-2012	27	1531	1311	109	2477	2127	283
BAKKEN	8-2012	31	1897	1963	242	3333	2767	489
BAKKEN	7-2012	31	2135	2309	186	3988	2624	1287
BAKKEN	6-2012	30	1811	1742	56	3001	2073	854
BAKKEN	5-2012	30	1331	1395	65	2186	1439	672
BAKKEN	4-2012	28	1482	1364	43	1969	1231	668
BAKKEN	3-2012	31	1766	1908	94	2946	2281	588
BAKKEN	2-2012	29	1799	1731	101	3041	2800	169
BAKKEN	1-2012	30	2183	1874	168	3858	3674	109
BAKKEN	12-2011	18	2295	2314	184	4223	2442	1736
BAKKEN	11-2011	30	2421	2577	216	4135	3868	193
BAKKEN	10-2011	31	3050	2990	296	5175	4777	321
BAKKEN	9-2011	14	2474	2606	242	4832	1528	3304
BAKKEN	8-2011	0	0	0	0	0	0	0
BAKKEN	7-2011	22	1104	1077	92	1645	1272	373
BAKKEN	6-2011	30	2156	2224	145	3160	2227	933
BAKKEN	5-2011	24	1884	1855	109	2740	1893	847
BAKKEN	4-2011	30	2212	2304	233	3095	2299	795
BAKKEN	3-2011	31	2308	2076	168	3114	2575	539
BAKKEN	2-2011	28	2276	2793	150	2987	2471	516
BAKKEN	1-2011	31	2507	2567	197	3157	2657	500
BAKKEN	12-2010	31	2571	2225	188	4036	2484	1551
BAKKEN	11-2010	24	2339	2158	123	3439	2506	933
BAKKEN	10-2010	31	2475	2525	198	3242	2822	420
BAKKEN	9-2010	30	2594	2732	213	3744	3333	411
BAKKEN	8-2010	31	2729	2745	207	3215	2378	836
BAKKEN	7-2010	31	2815	2553	223	3249	2671	578
BAKKEN	6-2010	27	2680	2891	333	2719	590	2129
BAKKEN	5-2010	31	3394	3269	324	3758	3469	288
BAKKEN	4-2010	30	3428	3420	306	4097	3848	248
BAKKEN	3-2010	31	3855	4038	323	5165	4456	708
BAKKEN	2-2010	28	3620	3500	410	5102	4134	968
BAKKEN	1-2010	31	4202	4239	984	5970	4490	1480
BAKKEN	12-2009	5	791	662	530	1751	867	884
BAKKEN	11-2009	11	1889	1907	209	2286	0	2286
BAKKEN	10-2009	31	4657	4443	279	6258	0	6258
BAKKEN	9-2009	28	4289	4597	256	6494	4948	1546
BAKKEN	8-2009	31	5468	5305	419	8661	7609	1052
BAKKEN	7-2009	31	6383	6446	579	8164	5829	2335
BAKKEN	6-2009	23	5908	6000	588	7737	5963	1774
BAKKEN	5-2009	31	7296	7028	568	8979	8247	732
BAKKEN	4-2009	30	8520	8716	871	9571	4969	4602
BAKKEN	3-2009	29	9594	9177	1774	8376	0	8376