Random Update Of The Three Oldest Wells In North Dakota That Are Still Active -- June 1, 2015

I believe these are the three oldest wells drilled in North Dakota that are still active (I could be wrong, and would be thrilled if anyone can provide names of wells that are older and still producing). These wells are celebrating 61 years of production this year.

• 537, 458/421, Hess, Lalim-Ives Unit A 1, Tioga oil field, Madison/Devonian, t3/54 (Madison) and 9/68 (Devonian); cum 152K (Madison last produced 5/68); cum 1.93 million bbls (Devonian, still producing about 500 bbls/month; as high as 1,340 bbls 11/13)

• 498, 292, Hess, Tioga-Madison Unit L-132HR, Tioga oil field, Madison, t7/54; cum 1.95 million bbls; still producing about 250 bbls/month; I can't say for sure, but it looks like this well was re-entered and a lateral was drilled in 2006;

• 443, 409, Hess, Beaver Lodge-Madison Unit S-27HR, Beaver Lodge oil field, t8/54; cum 742K 3/15; still producing about 350 bbls/month; from the file report, 7/03; total drilling days for this re-entry -- 9 days; "Amerada Hess drilled the Beaver Lodge Madison Unit S-27HR2 as a re-entry second leg horizontal well to produce a good Madison trend that is currently not being produced by horizontal technology. The vertical well bore was drilled at an earlier date to a depth of approximately 8,511 feet. The first lateral was drilled along an azimuth of 220 degrees, parallel to the fracture trend, with a vertical section of 1805 feet, approximately 1600 feet being in the Rival B1/B2 Porosity target. The second lateral was drilled along an azimuth of 170 degrees in a southeast direction for a total of 11,098 feet measured depth with a vertical section of 2466 feet in the Rival B1/B2 Porosity target." If I understand the report correctly, the well is producing from the second lateral. If I understand this report, the re-entry was a horizontal, but it was not fracked artificially; it followed the natural fracture trend.

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Location of #498:

Production profile of # 443 about the time it was re-entered and a lateral drilled:

MADISON	5-2004	31	4805	4820	21949	41907	41907	0
MADISON	4-2004	30	5173	5163	23205	56131	56131	0
MADISON	3-2004	30	5001	5006	23203	57781	57781	0
MADISON	2-2004	29	4807	4799	24131	55456	55456	0
MADISON	1-2004	31	5457	5456	26999	66636	66636	0
MADISON	12-2003	31	7070	7054	27840	79653	79653	0
MADISON	11-2003	30	5329	5409	23213	62713	62713	0
MADISON	10-2003	29	8214	8440	34235	45545	45545	0
MADISON	9-2003	30	7545	7182	32328	46165	46165	0
MADISON	8-2003	6	163	160	577	2216	2216	0
MADISON	7-2003	0	0	9	0	0	0	0
MADISON	6-2003	16	358	371	1320	962	962	0
MADISON	5-2003	28	801	801	2381	2013	2013	0
MADISON	4-2003	30	808	802	2276	1996	1996	0
MADISON	3-2003	31	631	630	2819	1857	1857	0
MADISON	2-2003	28	650	650	2385	1759	1759	0
MADISON	1-2003	31	731	732	2871	1845	1845	0
MADISON	12-2002	31	851	849	2492	2155	2155	0
MADISON	11-2002	30	814	814	3010	2369	2369	0

Laterals for #443: