RCMP have set up a website to help find the person responsible for the Dawson Creek bombings.
Explosives were set off at two EnCana pipelines and one well-head in October.
Police have released surveillance photos of eight people they are looking to question in connection with the attacks.
They have also released a copy of a threatening letter mailed from the Dawson Creek Shoppers Drug Mart.
The eight people mailed letters from the drug store on October 7th and police are hoping to narrow down their list of possible suspects.
Sgt. Tim Shields told a news conference Wednesday that investigators believe EnCana was specifically targeted.
"Investigators are confident that the person or persons exploding these bombs is from the local area and has a grievance with EnCana," he said in a prepared statement, asking the public to speak up if they know anyone who has expressed anger about the company.
"They will have talked about those grievances to someone, possibly advocating or threatening violent action. This person will have knowledge of and possibly access to explosives."
EnCana spokesman Mike McAllister appealed directly to the bomber Wednesday, inviting whoever is involved to stop their attacks and contact the company directly if they have concerns about local oil and gas development.
"We do not believe you intend the loss of life, but you must understand that a continuation of the bombings dramatically raises the danger of that occurring," McAllister said in a statement.
"It is apparent from your letter that you have grave concerns about the course of energy development in the Tomslake area. I urge you to contact EnCana to discuss your concerns."
No one was injured in the blasts which occurred on Oct. 12, 16 and 31.
Investigators hope the appeal and website will generate tips to help them find the person responsible for the bombings.
Anyone with information is asked to call a toll-free tip line, 1.866.994.7473 or Crime Stoppers at 1.800.222.8477.
To visit the Dawson Creek Bombing website, click here
