Range Resources Cites 67% Increase in Tx. P1 Reserves

Range Resources has a revised reserve report on the North Chapman Ranch field in Nueces County, Texas, following the successful drilling and completion of the Russell-Bevly #1 appraisal well earlier this year. As previously reported, the Russell-Bevly well confirmed the Company's structural and stratigraphic models and established additional Proved oil and gas reserves across the northwest flank of the closure.

The well averaged 1.3 MMcfd and 104 Bopd during the month of September from just 11 ft. of perforations in one of four identified pay zones totaling roughly 130 ft in thickness. Early October results have already increased to approximately 1.8 Mcf and 140 Bopd over the same zone following the increase of well head pressure.

After integration of data obtained from the Russell-Bevly #1, and as shown in the tables below, oil, natural gas, and natural gas liquids reserves net to the Company's interest, as certified by Lonquist, the Company's reserve auditor are detailed below.

Lonquist's independent reserves report has estimated the following gross commercially recoverable reserves from the North Chapman Ranch Field:


Category Natural Gas (Bcf) Oil (Mmbbls) Natural Gas Liquids (Mmbbls)
Proved (P1) 62.4 4.8 4.5
Probable (P2) 34.6 2.7 2.5
Possible (P3) 142.5 10.9 10.3
Total Reserves 239.5 18.4 17.3

Set out below is Range's attributable interest in the gross recoverable reserves on 25% of the Smith #1 well and on 20% of the remaining wells assuming the exercise of certain clawback provisions by joint venture partners occurs following the success of the Smith #1 and Russell-Bevly wells:

Category Natural Gas (Bcf) Oil (Mmbbls) Natural Gas Liquids (Mmbbls)
Proved (P1) 12.7 1.0 0.9
Probable (P2) 6.9 0.5 0.5
Possible (P3) 28.5 2.2 2.1
Total Reserves 48.1 3.7 3.5

Based on the reserve numbers cited above, Lonquist's estimated net undiscounted cash flow value to Range, along with PW10 discounted cash flow (at a 10% discount rate) using the same commodity price deck as used in the May 2010 report, following reductions for royalties, opex, capex, production taxes etc are as follows:

Reserve Category Undiscounted USD PW10 USD
Proved (P1) 100MM 69MM
Probable (P2) 60MM 37MM
Possible (P3) 252MM 142MM
Estimated Future Cashflow (Range's Net Interest) 412MM 248MM

Changes to reserve estimates at North Chapman Ranch include a significant movement of Probable Reserves into the Proved category, as well as new reserves established by the Russell-Bevly #1.

Plans for the next well at North Chapman Ranch are currently being finalized with Range and its joint venture partners.

East Texas Cotton Valley Prospect

Approaching another milestone in its international exploration and development program, the first horizontal well (Range holds 13.56% interest) in the East Clarksville oil field will be spudded later this month. The Ross 3H horizontal well will be drilled to 8,200 ft (2,500m). measured depth, with a horizontal section approximately 2,500 ft (762m) in length. The well will test the Cotton Valley formation and offset the Morris 2H well that previously found good quality oil and reservoir rock approximately 500 ft (152m) to the west. If successful, the Ross 3H could trigger an oil development drilling program of 20-25 wells, with estimated recoveries of between 200,000 - 300,000 Bbls per well. The Ross 3H is expected to cost US $2.8MM to drill and complete, or US $380,000, net to Range's 13.56% working interest.

Commenting on the recent and upcoming events in Texas, Range's Executive Director Peter Landau said, "As expected, the Russell Bevly #1 well has added new reserves, production and cash flow to the Company's portfolio, while helping to calibrate our development plans for the North Chapman Ranch field going forward. Similarly, we are confident that the Ross 3H well will not only add additional crude oil to Range's growing reserve base, but will give us valuable experience in the area of horizontal drilling applications for future upstream projects."


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