Samson 21% Working Interest
The Jonah Field is located in the northern part of the Green River Basin. It is one of the largest discoveries in recent decades in the continental United States, having produced in excess of 1.5 trillion cubic feet of gas since commencing production in 1992. Development of this field has resulted from the application of advanced fracture stimulation techniques. The field has undergone several iterations of development with some sections of the field currently being developed on a 10 acre well spacing. The current well spacing is approximately 20 acres.
The field produces from a series of stacked reservoirs within the Mesaverde and Lance formations. The field is wedge shaped and trapped between two faults.
The current development in the acquired section is approximately 20 acres. In late 2006, approval was granted for developing the field on 10 acre spacing, which would result in a further 5 or 6 development wells being drilled in the acquired section. Two additional development wells are being planned by the operator and are expected to be drilled in the September/October 2007.
A compressor upgrade was installed in the Jonah Field in March 2007, which consisted of increasing the horsepower from 1200 to 1800 HP and enlarging the throughput capacity. This upgrade resulted in an initial increase in the gross production rate from the field of 2.2 mmcfpd from 4.8 mmcfpd to 7.0 mmcfpd. The compression upgrade was necessary because of the additional development wells that have been brought on stream in the adjacent part of the field, which has seen an accelerated infill development. These development wells are not in the same portion of the Jonah Field in which Samson has an interest. The compression upgrade has resulted in lowering the inlet pressure to between 50 to 100 psi from a previous range of between 250 to 300 psi.
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