A directional drilling natural gas well northeast of Denver exploded yesterday afternoon.

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The accident, which killed one man and injured three others, appears to have been from an unexpected release of high-pressure gas.

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From the Denver Post:

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A Flight for Life helicopter responded to the well site … Medical crews performed CPR on the 60-year-old victim but he could not be revived, [sheriff’s office spokesman Tim] Schwartz said.

A deputy leaving the scene of the accident Wednesday afternoon said the dead man was from Wyoming. He said two of the workers with minor injuries were taken for treatment in private vehicles. …

The dead man and the two workers who had minor injuries were employed by a company contracted to Encana.

The worker who is hospitalized is an Encana employee.

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Canada-based Encana’s website has no statement about the accident, though a company spokesperson told the Financial Post that the “location and well are secure” and that the company’s “thoughts and prayers go out to the families and friends of our colleagues,” in that order.