Small Red River Discovery Noted Northwest of Glendive

Dawson County, Montana

Englewood, Colo.–based Rim Operating (Rim) has completed a small, straight-hole Ordovician discovery some 20 miles northwest of Glendive, Mont. Located on the northern flank of South Bloomfield Field, the company has given the Little Jo #12-17, sw-nw 17-19n-54e, Dawson County, an IPP of 15 bopd and 10 bwpd from vertical Red River perforations near 9,100’. South Bloomfield Field produces both from vertical and horizontal Red River sections.

Representing the first time the Colorado independent has shown up in this area, the Little Jo #12-17 sits roughly midway between two existing producers—one vertical and one horizontal—in South Bloomfield Field.

This reservoir was discovered by Dallas-based Petro-Hunt in September 2009 and has cumulated more than 1.6 mmbo and 739 mmcfg from seven active wells, all operated by the Texas company.

Almost a half-mile southwest of Rim’s Little Jo #12-17, Petro-Hunt drilled the Walter Senner #19-54 18D-2-1, ne-se 18-19n-54e. Completed as a developmental well in South Bloomfield Field, the prospect was given an IPP of 500 bopd, 148 mcfgpd, and 1,888 bwpd from vertical Red River perforations at 10,950’–10,962’. Going on-line in September 2012, the Walter Senner #19-54 18D-2-1 has cumulated more than 608 k bo, 286 mmcfg, and 1.3 k bw. Tops picked in this wellbore include the Mission Canyon at 8,502’, Nisku at 9,704’, Interlake at 10,366’, and the Red River at 10,808’, measured from a KB elevation of 2,576’.

A similar distance southeast of the Little Jo #12-17 strike, Petro-Hunt punched-in a lateral endeavor at the Boje Farms #19-54 17D-20-1H, se-se 17-19n-54e. This test was given an IPP of 424 bopd, 161 mcfgpd, and 7 bwpd from the horizontal Red River interval between 11,290’ and 14,661’. Since February 2011, the formation has yielded 809 k bo, 341 mmcfg, and 14.3 k bw.

The discovery well for South Bloomfield Field spots less than a mile southeast of Rim’s Little Jo #12-17. Drilled by Petro-Hunt in 2009, the Charles Senner #20D-2-1, nw-se 20-19n-54e, was given an IPP of 376 bopd, 197 mcfgpd, and 2 bwpd from vertical Red River perforations at 10,990’–11,042’. Since September 2009, this vertical strike has cumulated more than 236 k bo, 89 mmcfg, and 5.6 k bw.

Three miles northwest of Rim’s Little Jo #12-17, Petro-Hunt drilled the only horizontal Red River producer in Bloomfield Field, a Red River oil pool. The Austby #19-53 2B-34-1H, ne-nw 2-19n-53e, has cumulated more than 285 k bo, 140 mmcfg, and 8.9 k bw from a shortened Red River lateral that landed in the sw-se 34-20n-53e. This venture has been on-production since October 2010.

Following its discovery in 1983, Bloomfield Field has cumulated at least 2.2 mmbo and 1.2 bcfg. The pool currently produces from the vertical Dawson Bay, Interlake, and Red River. Other than Petro-Hunt, the only operator drawing oil from this reservoir is Denbury Onshore LLC.