Dripping Rock Field produces gas mainly from the Cretaceous Upper Almond Formation. The producing sand is a stratigraphically trapped sand bar pinching out updip on the east side of the field. The wells in the field are prolific with reserves up to 20 BCF per well. The average well in Dripping Rock has a EUR of 10 BCF. Typical completion includes a frac. The Almond Sand is overpressured.

The Celsius MDU-20 well is located 90' fnl, 1,120' fel of section 6 and was drilled to 12,700'. Intermediate casing was set to 11,007', but no completion was attempted due to mechanical problems. No tests were run. The intermediate casing is still in this well to a depth of 11,007'. Celsius tried to set two cement plugs below the intermediate casing. Both plugs were unsuccessful due to leaking high-pressure gas. Celsius was unable to successfully kill the well with 13.6# mud. The well was finally plugged by placing a cement retainer in the intermediate casing at 9,855'. Everything below this retainer is high-pressured gas.

The Upper Almond sand was encountered in the Celsius MDU 20 well (12425-12458) and is well developed with 20' of over 12% porosity. This is typical of producing wells in the field. The Almond was cored but no description is available. The resistivity is 10ohms. The proposed location should encounter the Upper Almond 50' high to this well.

The best Almond sand is seen in the Almond Main body (12595-12620') where 16' of sand with over 12% porosity and gas effect was encountered. This sand is not present in the updip wells or in the well in the south half of section 6. This sand is comparable in porosity and resistivity to the upper Almond Sand and has the added advantage of not having been depleted by updip wells.

A secondary target is seen in the Lewis, which has several potentially productive sands. Reserves for the Lewis in the Dripping Rock Field are hard to assess as it is co-mingled with the Almond in the rare instances where it is completed. The nearest "Lewis only" production is in sec 5-T13N-R95W (seven miles to the southwest) where 15' of very tight Lewis sand has cumulated 1.8 BCF. The porosity of the Lewis sand at Dripping Rock is considerably better than this well. The Lewis is overpressured. The mud logs indicate overpressured gas from 10000' with continuous gas flares reported to the bottom of the hole, even when the mud weight was raised to 13.5 pounds

The second well in section 6 is the MDU 3 located in NWSE. This well has the Upper Almond sand (producing sand for the field) developed. The upper Almond in this well is 90' downdip from the MDU 20 well and 140' downdip from the proposed location. Pipe was run and the Upper Almond zone was perforated. This well flowed at rates 18mcf gas and 47 barrels of water during a short test. The well was abandoned without further stimulation. The core from this well had water saturations of 35% and less in the upper 10'. The resistivity logs indicate gas in the upper 10' of the Upper Almond. This well may be at the gas water contact although there appears to be a substantial transition zone that makes the contact hard to pick if it exists in this wellbore. All the wells in the field produce some water along with the gas. The average water production starts at 20 barrels per day and decreases along with the gas production.

The proposed location is the substantially updip to both the existing wells in section 6.