Samson Oil & Gas said that fracture stimulation operations on the Earl #1-13H well in North Dakota, US, has commenced.

The pumping operations are currently expected to be completed by the first week of April and flow back operations will commence shortly thereafter.

The company said that although there have been some weather-induced delays, stages one to four had been pumped, and stage five was about to be pumped.

The stimulation plan involves 20 stages, which will place a total of 2.7 million pounds of proppant in the 5,700ft horizontal section, according to the company.

Samson Oil & Gas is an Australian oil and gas company holding extensive development and exploration acreage in the US.