Marcellus Shale gas well production statistics

Real numbers on Marcellus Shale gas production

Potential gas production and actual gas production from Marcellus Shale wells became a hot topic during the summer of 2011. To wit, an SEC investigation. Financial investors need to know how accurate the predictions are of Marcellus Shale gas reserves, and the true productive life of Marcellus wells.

While predicting gas reserves remains just a prediction, we have tracked 193 wells at three dozen drilling locations with actual Marcellus gas well production numbers, to clearly show how much gas has been produced, and more importantly, how much gas production has declined over the first years of shale gas production.

The figures will surprise you. It has been shown that the average productive life of a Barnett Shale well is 7.5 years. From these early production results it looks as though these Marcellus wells may share that same short lifespan. The trend points to a 60-percent drop in production over the first 3 years, with further declines of 8 percent per year after that. Using that model, a Marcellus well's average productive life would be 8 years.

Natural gas processing and compression
Gas processing and compression north of Pittsburgh, Pennsylvania

The statistics for wells listed below cover a 42-month period (through 12/31/12) even though many of the wells are so new that production figures may only cover a few months. We have expanded the DEP statistics to show the average Mcf production per day (yellow column) making it much easier to compare the various reporting periods. Further information on each of these drilling units is shown on individual web pages linked on the left navigation bar under "Marcellus Shale Wells."

“In 2009, Pennsylvania produced about 3.6 million barrels of crude oil (1 barrel = 42 gallons) and 273 billion cubic feet of natural gas. Most oil wells in the state produce only a few barrels of oil per week and average gas well production is less than 13 Mcf (thousand cubic feet) of natural gas per day (that’s about enough gas to fuel one all-gas household for a month). Though production per well isn’t much, nationwide these stripper wells are an important part of our domestic energy supply because there are hundreds of thousands of stripper wells producing oil and gas in the United States. In addition to the stripper wells, the new Marcellus Shale wells are greatly increasing the state’s total production. Production reported from Marcellus Shale wells averages about 950 Mcf per day.”
Source: Pennsylvania DEP

Note: The first Pennsylvania DEP reporting period covered 12-months (7/1/09-6/30/10) while each reporting period since then has covered a 6-month period)

Latest analysis through December 31, 2012
Gas production timeline and decline percentages for 193
Marcellus Shale wells in Washington County, Pa.
(Chart summarizes data found below)

Marcellus Shale gas well production decline

Below: Historical chart through June 30, 2012
Gas production timeline and decline percentages for 170
Marcellus Shale wells in Washington County, Pa.
(Chart summarizes data found below)

INDIVIDUAL MARCELLUS SHALE WELLS:

Source: Pennsylvania DEP Production Reports
Farm Name	Well No.	Product	Vol.	Days	Avg/ Day	End Date
GUY AVOLIO	6H	Gas	36,656	76	482	12/31/11
			68,993	59	1,169	6/30/12
13% drop-off in 8 months			45,148	108	418	12/31/12
GUY AVOLIO	6H	Cond.	3,772	76	50	12/31/11
			6,422	59	109	6/30/12
		Oil	2,951	108	27	12/31/12
GUY AVOLIO	8H	Gas	70,894	109	650	12/31/11
			65,458	67	977	6/30/12
17% drop-off in 10 months			67,077	124	541	12/31/12
GUY AVOLIO	8H	Cond.	6,577	109	60	12/31/11
			8,511	67	127	6/30/12
		Oil	6,508	124	52	12/31/12
GUY AVOLIO	10H	Gas	21,724	78	279	12/31/11
			68,216	61	1,118	6/30/12
0% drop-off in 8 months			29,615	102	290	12/31/12
GUY AVOLIO	10H	Cond.	1,865	78	24	12/31/11
			3,726	61	61	6/30/12
		Oil	2,515	102	25	12/31/12

Source: Pennsylvania DEP Production Reports
Farm Name	Well No.	Product	Vol.	Days	Avg/ Day	End Date
CAROL BAKER	1H	Gas	75,460	20	3,773	6/30/10
			415,570	150	2,770	12/31/10
			360,670	181	1,993	6/30/11
			304,475	176	1,730	12/31/11
60% drop-off in 23.5 months			271,927	182	1,494	6/30/12
64% drop-off in 29.5 months			244,332	182	1,342	12/31/12
CAROL BAKER	1H	Oil	181	2	90	6/30/10
		Cond.	1,440	150	10	12/31/10
			410	181	2	6/30/11
			464	176	3	12/31/11
			373	182	2	6/30/12
			147	182	1	12/31/12
CAROL BAKER	2H	Gas	67,991	20	3,400	6/30/10
			331,325	153	2,166	12/31/10
			298,575	181	1,650	6/30/11
			244,234	176	1,388	12/31/11
64% drop-off in 23.5 months			224,265	182	1,232	6/30/12
68% drop-off in 29.5 months			200,802	182	1,103	12/31/12
CAROL BAKER	2H	Oil	181	2	90	6/30/10
		Cond.	1,349	153	9	12/31/10
			376	181	2	6/30/11
			272	176	1	12/31/11
			240	182	1	6/30/12
			112	182	1	12/31/12
CAROL BAKER	3H	Gas	75,129	20	3,756	6/30/10
			384,404	153	2,512	12/31/10
			389,359	181	2,151	6/30/11
			343,090	176	1,949	12/31/11
54.5% drop-off in 23.5 months			310,227	182	1,705	6/30/12
58% drop-off in 29.5 months			284,489	182	1,563	12/31/12
CAROL BAKER	3H	Oil	181	2	90	6/30/10
		Cond.	1,568	153	10	12/31/10
			256	181	1	6/30/11
			743	176	4	12/31/11
			231	182	1	6/30/12
			113	183	1	12/31/12
CAROL BAKER	4H	Gas	0	0	0	6/30/10
			285,550	125	2,284	12/31/10
			257,040	181	1,420	6/30/11
			231,963	176	1,318	12/31/11
49.5% drop-off in 22 months			209,963	182	1,154	6/30/12
55% drop-off in 28 months			189,104	182	1,039	12/31/12
CAROL BAKER	4H	Oil	0	0	0	6/30/10
		Cond.	1,229	125	10	12/31/10
			745	181	4	6/30/11
			316	176	2	12/31/11
			244	182	1	6/30/12
			167	182	1	12/31/12
CAROL BAKER	5H	Gas	0	0	0	6/30/10
			294,129	125	2,353	12/31/10
			279,567	181	1,545	6/30/11
			243,657	176	1,384	12/31/11
49% drop-off in 22 months			219,442	182	1,206	6/30/12
53% drop-off in 28 months			200,308	182	1,100	12/31/12
CAROL BAKER	5H	Oil	0	0	0	6/30/10
		Cond.	1,078	125	9	12/31/10
			1,190	181	7	6/30/11
			477	176	3	12/31/11
			314	182	2	6/30/12
			113	182	1	12/31/12
CAROL BAKER	6H	Gas	0	0	0	6/30/10
			312,347	125	2,499	12/31/10
			346,388	181	1,914	6/30/11
			309,904	176	1,761	12/31/11
38% drop-off in 22 months			280,375	182	1,541	6/30/12
52% drop-off in 28 months			262,111	182	1,440	12/31/12
CAROL BAKER	6H	Oil	0	0	0	6/30/10
		Cond.	1,378	125	11	12/31/10
			1,318	181	7	6/30/11
			891	176	5	12/31/11
			569	182	3	6/30/12
			222	182	1	12/31/12
CAROL BAKER	7H	Gas	71,744	20	3,587	6/30/10
			318,324	125	2,547	12/31/10
			273,583	181	1,512	6/30/11
			263,095	177	1,486	12/31/11
64% drop-off in 22.5 months			234,889	182	1,291	6/30/12
67% drop-off in 28.5 months			213,947	182	1,176	12/31/12
CAROL BAKER	7H	Oil	181	2	90	6/30/10
		Cond.	1,380	152	9	12/31/10
			465	181	3	6/30/11
			152	177	1	12/31/11
			498	182	3	6/30/12
			356	182	2	12/31/12
CAROL BAKER	8H	Gas	75,042	20	3,752	6/30/10
			359,932	151	2,384	12/31/10
			297,347	181	1,643	6/30/11
			255,874	176	1,454	12/31/11
66% drop-off in 23.5 months			230,513	182	1,267	6/30/12
70% drop-off in 29.5 months			205,404	182	1,129	12/31/12
CAROL BAKER	8H	Oil	181	2	90	6/30/10
		Cond.	1,664	151	11	12/31/10
			451	181	2	6/30/11
			261	176	1	12/31/11
			195	182	1	6/30/12
			98	182	1	12/31/12

Source: Pennsylvania DEP Production Reports
Farm Name	Well No.	Product	Vol.	Days	Avg/ Day	End Date
BEDILLION – DAY	1H	Gas	315,950	133	2,376	6/30/10
			340,632	184	1,851	12/31/10
			255,595	176	1,452	6/30/11
			220,725	184	1,200	12/31/11
57% drop-off in 28.5 months			186,104	182	1,023	6/30/12
60% drop-off in 34.5 months			166,467	174	957	12/31/12
BEDILLION - DAY	1H	Oil	513	12	43	6/30/10
			0	184	0	12/31/10
			0	176	0	6/30/11
			0	184	0	12/31/11
			-	-	-	6/30/12
			-	-	-	12/31/12
BEDILLION - DAY	2H	Gas	233,079	196	1,189	6/30/10
			168,367	184	915	12/31/10
			0	0	0	6/30/11
			121,301	184	659	12/31/11
51% drop-off in 24.5 months			104,718	181	579	6/30/12
55% drop-off in 30.5 months			92,201	174	530	12/31/12
BEDILLION – DAY	2H	Oil	541	23	24	6/30/10
			0	184	0	12/31/10
			0	0	0	6/30/11
			0	184	0	12/31/11
			-	-	-	6/30/12
			-	-	-	12/31/12
BEDILLION – DAY	4H	Gas	293,598	159	1,847	6/30/10
			315,604	184	1,715	12/31/10
			262,141	176	1,489	6/30/11
			127,486	184	693	12/31/11
38% drop-off in 29 months			207,170	182	1,138	6/30/12
42% drop-off in 35 months			187,031	174	1,075	12/31/12
BEDILLION – DAY	4H	Oil	541	13	42	6/30/10
			0	184	0	12/31/10
			0	176	0	6/30/11
			0	184	0	12/31/11
			-	-	-	6/30/12
			-	-	-	12/31/12

Source: Pennsylvania DEP Production Reports
Farm Name	Well No.	Product	Vol.	Days	Avg/ Day	End Date
BEDNARSKI UNIT	1H-A	Gas	89,845	65	1,382	12/31/10
			64,072	47	1,363	6/30/11
			141,935	179	793	12/31/11
50% drop-off in 15.5 months			125,739	182	691	6/30/12
53% drop-off in 21.5 months			118,435	184	644	12/31/12
BEDNARSKI UNIT	1H-A	Cond.	851	65	13	12/31/10
		Oil	2,357	47	50	6/30/11
			3,626	179	20	12/31/11
		Cond.	1,488	182	8	6/30/12
			1,043	184	6	12/31/12
BEDNARSKI UNIT	2H	Gas	126,734	65	1,950	12/31/10
			27,825	50	556	6/30/11
			93,305	183	510	12/31/11
73% drop-off in 15 months			95,385	182	524	6/30/12
75% drop-off in 21 months			89,003	184	484	12/31/12
BEDNARSKI UNIT	2H	Cond.	851	65	13	12/31/10
		Oil	1,544	50	31	6/30/11
			1,157	183	6	12/31/11
		Cond.	1,040	182	6	6/30/12
			730	184	4	12/31/12
BEDNARSKI UNIT	4H	Gas	0	0	0	12/31/10
			0	0	0	6/30/11
			397,313	157	2,531	12/31/11
32% drop-off in 11 months			312,519	182	1,717	6/30/12
42% drop-off in 17 months			271,238	184	1,474	12/31/12
BEDNARSKI UNIT	4H	Cond.	0	0	0	12/31/10
		Oil	0	0	0	6/30/11
			6,576	157	42	12/31/11
		Cond.	3,715	182	20	6/30/12
			2,607	184	14	12/31/12
BEDNARSKI UNIT	5H	Gas	0	0	0	12/31/10
			124,000	49	2,531	6/30/11
			292,084	162	1,803	12/31/11
45.5% drop-off in 13 months			251,042	182	1,379	6/30/12
53% drop-off in 19 months			220,275	184	1,197	12/31/12
BEDNARSKI UNIT	5H	Cond.	0	0	0	12/31/10
		Oil	3,684	49	80	6/30/11
			6,029	162	37	12/31/11
		Cond.	3,270	182	18	6/30/12
			2,294	184	12	12/31/12
BEDNARSKI UNIT	6H	Gas	0	0	0	12/31/10
			120,011	50	2,400	6/30/11
			344,768	175	1,970	12/31/11
41.5% drop-off in 13.5 months			255,749	182	1,405	6/30/12
50% drop-off in 19.5 months			221,318	184	1,203	12/31/12
BEDNARSKI UNIT	6H	Cond.	0	0	0	12/31/10
		Oil	3,333	50	67	6/30/11
			4,670	175	27	12/31/11
		Cond.	2,526	182	14	6/30/12
			1,773	184	10	12/31/12
BEDNARSKI UNIT	7H	Gas	0	0	0	12/31/10
			39,373	27	1,458	6/30/11
			391,146	172	2,274	12/31/11
30% drop-off in 12 months			287,054	182	1,577	6/30/12
41% drop-off in 18 months			245,744	184	1,336	12/31/12
BEDNARSKI UNIT	7H	Cond.	0	0	0	12/31/10
		Oil	1,498	27	55	6/30/11
			5,911	172	34	12/31/11
		Cond.	3,418	182	19	6/30/12
			2,399	184	13	12/31/12
BEDNARSKI UNIT	8H	Gas	0	0	0	12/31/10
			71,345	50	1,427	6/30/11
			155,047	116	1,337	12/31/11
34.5% drop-off in 11.5 months			170,127	182	935	6/30/12
42% drop-off in 17.5 months			152,148	184	827	12/31/12
BEDNARSKI UNIT	8H	Cond.	0	0	0	12/31/10
		Oil	1,498	50	30	6/30/11
			2,469	174	14	12/31/11
		Cond.	1,486	182	8	6/30/12
			1,043	184	6	12/31/12
BEDNARSKI UNIT	9H	Gas	0	0	0	12/31/10
			0	0	0	6/30/10
			155,047	116	1,337	12/31/11
23.5% drop-off in 10 months			186,619	182	1,023	6/30/12
42% drop-off in 16 months			167,255	184	909	12/31/12
BEDNARSKI UNIT	9H	Cond.	0	0	0	12/31/10
			0	0	0	6/30/10
			2,066	116	18	12/31/11
		Cond.	2,229	182	12	6/30/12
			1,564	184	8	12/31/12

Source: Pennsylvania DEP Production Reports
Name	Well No.	Product	Vol.	Days	Avg/ Day	End Date
BEST	1H	Gas	706,894	290	2,438	6/30/10
			349,688	184	1,900	12/31/10
			208,361	155	1,344	6/30/11
			204,968	183	1,120	12/31/11
58% drop-off in 31 months			186,788	182	1,026	6/30/12
61% drop-off in 37 months			175,524	183	959	12/31/12
BEST	1H	Oil	8,119	260	31	6/30/10
		Cond.	2,512	184	14	12/31/10
		Oil	1,734	155	11	6/30/11
			1,507	183	8	12/31/11
			1,366	182	7	6/30/12
			1,117	183	6	12/31/12
BEST	2H	Gas	602,831	267	2,258	6/30/10
			292,151	184	1,588	12/31/10
			230,437	157	1,468	6/30/11
			225,803	184	1,227	12/31/11
51% drop-off in 32 months			200,320	182	1,101	6/30/12
55% drop-off in 38 months			185,252	183	1,012	12/31/12
BEST	2H	Oil	8,731	272	32	6/30/10
		Cond.	3,525	184	19	12/31/10
		Oil	2,844	157	18	6/30/11
			3,213	184	17	12/31/11
			2,677	182	15	6/30/12
			2,384	183	13	12/31/12
BEST	3H	Gas	589,481	290	2,033	6/30/10
			252,629	184	1,373	12/31/10
			197,714	157	1,259	6/30/11
			158,285	183	865	12/31/11
61.5% drop-off in 33 months			142,491	182	783	6/30/12
66% drop-off in 39 months			126,336	183	690	12/31/12
BEST	3H	Oil	4,149	262	16	6/30/10
		Cond.	638	184	3	12/31/10
		Oil	531	157	3	6/30/11
			456	183	2	12/31/11
			427	182	2	6/30/12
			261	183	1	12/31/12
BEST	5H	Gas	456,120	295	1,546	6/30/10
			113,981	183	623	12/31/10
			141,240	165	856	6/30/11
			130,323	183	712	12/31/11
59% drop-off in 33 months			116,180	182	638	6/30/12
62% drop-off in 39 months			106,716	183	583	12/31/12
BEST	5H	Oil	4,144	282	15	6/30/10
		Cond.	478	183	3	12/31/10
		Oil	833	165	5	6/30/11
			415	183	2	12/31/11
			336	182	2	6/30/12
			275	183	2	12/31/12
BEST	6H	Gas	556,745	290	1,954	6/30/10
			238,306	184	1,295	12/31/10
			128,390	120	1,070	6/30/11
			145,854	184	793	12/31/11
63.5% drop-off in 32 months			129,831	182	713	6/30/12
66% drop-off in 38 months			121,306	183	663	12/31/12
BEST	6H	Oil	4,016	269	15	6/30/10
		Cond.	886	184	5	12/31/10
		Oil	332	120	3	6/30/11
			518	184	3	12/31/11
			403	182	2	6/30/12
			278	183	2	12/31/12
BEST	7H	Gas	556,745	290	1,920	6/30/10
			190,612	183	1,042	12/31/10
			171,909	157	1,095	6/30/11
			97,577	166	588	12/31/11
68.5% drop-off in 32 months			109,741	182	603	6/30/12
70% drop-off in 38 months			106,399	183	581	12/31/12
BEST	7H	Oil	4,398	269	16	6/30/10
		Cond.	1,470	183	8	12/31/10
		Oil	1,817	157	12	6/30/11
			460	166	3	12/31/11
			522	182	3	6/30/12
			410	183	2	12/31/12

Pennsylvania DEP Production Reports
Farm Name	Well No.	Product	Vol.	Days	Avg/ Day	End Date
BIGLEY UNIT	1H	Gas	0	0	0	12/31/11
			527,048	81	6,507	6/30/12
65% drop-off in 9 months			421,534	184	2,291	12/31/12
BIGLEY UNIT	1H	Oil	0	0	0	12/31/11
			-	-	-	6/30/12
			-	-	-	12/31/12
BIGLEY UNIT	3H	Gas	0	0	0	12/31/11
			459,163	79	5,812	6/30/12
56% drop-off in 9 months			471,530	184	2,563	12/31/12
BIGLEY UNIT	3H	Oil	0	0	0	12/31/11
			-	-	-	6/30/12
			-	-	-	12/31/12
BIGLEY UNIT	4H	Gas	0	0	0	12/31/11
			512,356	82	6,248	6/30/12
57% drop-off in 9 months			491,783	184	2,673	12/31/12
BIGLEY UNIT	4H	Oil	0	0	0	12/31/11
			-	-	-	6/30/12
			-	-	-	12/31/12
BIGLEY UNIT	5H	Gas	0	0	0	12/31/11
			492,668	82	6,008	6/30/12
56% drop-off in 9 months			488,886	184	2,657	12/31/12
BIGLEY UNIT	5H	Oil	0	0	0	12/31/11
			-	-	-	6/30/12
			-	-	-	12/31/12
BIGLEY UNIT	6H	Gas	0	0	0	12/31/11
			518,466	79	6,563	6/30/12
55% drop-off in 9 months			546,610	184	2,971	12/31/12
BIGLEY UNIT	6H	Oil	0	0	0	12/31/11
			-	-	-	6/30/12
			-	-	-	12/31/12
BIGLEY UNIT	7H	Gas	0	0	0	12/31/11
			570,274	85	6,709	6/30/12
56% drop-off in 9 months			546,610	184	2,971	12/31/12
BIGLEY UNIT	7H	Oil	0	0	0	12/31/11
			-	-	-	6/30/12
			-	-	-	12/31/12
BIGLEY UNIT	8H	Gas	0	0	0	12/31/11
			482,736	83	5,816	6/30/12
56% drop-off in 9 months			471,530	184	2,563	12/31/12
BIGLEY UNIT	8H	Oil	0	0	0	12/31/11
			-	-	-	6/30/12
			-	-	-	12/31/12
BIGLEY UNIT	9H	Gas	0	0	0	12/31/11
			617,726	88	7,020	6/30/12
63% drop-off in 9 months			471,527	184	2,563	12/31/12
BIGLEY UNIT	9H	Oil	0	0	0	12/31/11
			-	-	-	6/30/12
			-	-	-	12/31/12
BIGLEY UNIT	10H	Gas	0	0	0	12/31/11
			664,385	83	8,005	6/30/12
63% drop-off in 9 months			546,610	184	2,971	12/31/12
BIGLEY UNIT	10H	Oil	0	0	0	12/31/11
			-	-	-	6/30/12
						12/31/12
BIGLEY UNIT	11H	Gas	0	0	0	12/31/11
			469,253	72	6,517	6/30/12
59% drop-off in 9 months			492,011	184	2,674	12/31/12
BIGLEY UNIT	11H	Oil	0	0	0	12/31/11
			-	-	-	6/30/12
			-	-	-	12/31/12

Source: Pennsylvania DEP Production Reports
Farm Name	Well No.	Product	Vol.	Days	Avg/ Day	End Date
WILLIAM BLACK	1H	Gas	25,384	10	2,538	12/31/11
58% drop-off in 6 months			192,118	179	1,073	6/30/12
66% drop-off in 12 months			153,872	184	836	12/31/12
WILLIAM BLACK	1H	Oil	1,058	10	106	12/31/11
			0	0	0	6/30/12
			3,047	184	17	12/31/12
WILLIAM BLACK	2H	Gas	27,119	10	2,712	12/31/11
57% drop-off in 6 months			210,841	179	1,178	6/30/12
67% drop-off in 12 months			164,422	184	894	12/31/12
WILLIAM BLACK	2H	Oil	1,357	10	136	12/31/11
			4,046	179	23	6/30/12
			2,549	184	14	12/31/12
WILLIAM BLACK	3H	Gas	32,122	10	3,212	12/31/11
53% drop-off in 6 months			271,212	179	1,515	6/30/12
64% drop-off in 12 months			213,864	184	1,162	12/31/12
WILLIAM BLACK	3H	Oil	1,151	10	115	12/31/11
			6,360	179	36	6/30/12
			3,745	184	20	12/31/12
WILLIAM BLACK	4H	Gas	202	10	20	12/31/11
			259,193	179	1,448	6/30/12
31% drop-off in 12 months			184,892	184	1,005	12/31/12
WILLIAM BLACK	4H	Oil	44	10	4	12/31/11
			7,885	179	44	6/30/12
			3,765	184	20	12/31/12
WILLIAM BLACK	5H	Gas	21,828	10	2,182	12/31/11
45% drop-off in 6 months			214,821	179	1,200	6/30/12
57% drop-off in 12 months			171,742	184	933	12/31/12
WILLIAM BLACK	5H	Oil	617	10	62	12/31/11
			4,123	179	23	6/30/12
			3,073	184	17	12/31/12
WILLIAM BLACK	7H	Gas	15,150	10	1,515	12/31/11
20% drop-off in 6 months			214,206	176	1,217	6/30/12
43% drop-off in 12 months			159,535	184	867	12/31/12
WILLIAM BLACK	7H	Oil	643	10	64	12/31/11
			6,012	176	34	6/30/12
			4,572	184	25	12/31/12
WILLIAM BLACK	8H	Gas	18,703	10	1,870	12/31/11
48% drop-off in 6 months			172,439	179	963	6/30/12
65% drop-off in 12 months			120,591	184	655	12/31/12
WILLIAM BLACK	8H	Oil	706	10	71	12/31/11
			5,168	179	29	6/30/12
			3,387	184	18	12/31/12
WILLIAM BLACK	9H	Gas	22,240	10	2,224	12/31/11
52% drop-off in 6 months			190,689	179	1,065	6/30/12
62% drop-off in 12 months			156,507	184	851	12/31/12
WILLIAM BLACK	9H	Oil	1,401	10	140	12/31/11
			5,722	179	32	6/30/12
			4,572	184	25	12/31/12

Source: Pennsylvania DEP Production Reports
Farm Name	Well No.	Product	Vol.	Days	Avg/ Day	End Date
CHAPPEL UNIT	1H	Gas	349,842	128	2,733	6/30/11
			346,043	184	1,881	12/31/11
41% drop-off in 16 months			279,831	174	1,608	6/30/12
47% drop-off in 22 months			245,006	168	1,458	12/31/12
CHAPPEL UNIT	1H	Oil	5,984	128	47	6/30/11
			4,761	184	26	12/31/11
			2,797	174	16	6/30/12
			1,836	168	11	12/31/12
CHAPPEL UNIT	2H	Gas	321,686	129	2,494	6/30/11
			299,901	184	1,630	12/31/11
41% drop-off in 16 months			260,141	178	1,461	6/30/12
47% drop-off in 22 months			243,081	184	1,321	12/31/12
CHAPPEL UNIT	2H	Oil	5,824	129	45	6/30/11
			3,328	184	18	12/31/11
			2,347	178