Pipeline Spilled Oilfield Wastewater in North Dakota

A pair of pipeline leaked and spilled oilfield wastewater into a tributary of the Missouri River and over some pastureland last week in North Dakota. State Health Department environmental scientist Bill Suess said that on Tuesday, the cleanup was ongoing at the two sites where produced water leaked.

Produced water is a byproduct of oil production that contains saltwater and oil, and sometimes chemicals from hydraulic fracturing operations. The health officials do not yet know what caused the pipeline to spill oilfield wastewater.

"We still don't know what happened," Suess said.

The first spill was reported on July 14 that 21,000 gallons of oilfield wastewater leaked from an underground pipeline and into an unnamed tributary of the Missouri River. The second spill leaked more than 12,000 gallons of oilfield wastewater, impacting an unknown amount of pastureland near Epping.

Both spills were reported by Polar Midstream, a unit of Summit Midstream Partners LLC. Based on samples that were collected, investigators don't think the spill reached the river, and the produced water in the tributary was being pumped out and "flushed" with fresh water, Suess said.

 "We are focused on remediation," said company vice president Zak Covar.


Flash Fire at Summit Midstream Hereford Plant Injures 3 Workers

Following a flash fire that occurred shortly after 9 am on Wednesday at Summit Midstream’s Hereford Ranch Plant in northern Weld County, three people were taken to area hospitals.

The plant is located in the 67500 block of Weld County Road 71. Denver7 reported that two helicopters and at least one ambulance responded to the scene and two out of the three contractors were thought to be in critical condition.

Blake Motley, spokesman for Summit Midstream, said in an email to The Tribune that three contractors were working on a compressor when the fire ignited and all three contractors were taken to area hospitals for treatment of burns. The fire is under investigation.


Tioga Gathering System to Be Acquired by Hess Midstream Partners

Hess North Dakota Pipelines agreed to purchase the crude oil and gas gathering assets of Summit Midstream Partners’ Tioga Gathering System for about $60 million gross or $12 million net to Hess Midstream.

The acquisition includes 73 miles of crude pipelines and 79 miles of gas pipelines. In a separate deal, Hess Midstream’s sponsor, Hess Infrastructure Partners (HIP), agreed to acquire the water gathering assets of the Tioga System from Summit Midstream Partners which includes 75 miles of produced water gathering pipelines.

Hess Midstream Partners chief operating officer John Gatling said, “We are excited to extend our infrastructure footprint with the agreement to purchase the Tioga System’s crude oil and gas gathering assets.”

The Tioga System, located in Williams County in western North Dakota, is complementary to Hess Midstream’s infrastructure and is delivering volumes into Hess Midstream’s gathering system. The completion of the acquisition is expected to take place in the first quarter of this year.


Summit Midstream Partners to Team Up with Exxon Mobil on NatGas Pipeline Systems in Permian Basin

Summit Midstream Partners is partnering with Exxon Mobil to build natural gas pipeline systems in the Permian Basin.

Summit will invest $110 million to build pipeline gathering systems in New Mexico's Eddy and Lea counties near the Texas border in the Permian's Delaware Basin with Exxon Mobil's subsidiary XTO Energy.

Summit will first build a natural gas gathering and processing system with two compressor stations and a cryogenic processing plant and expects to process production from XTO and other nearby producers.

The project is expected to be in operation by June of 2018.

Houston Chronicle