Drug distributor McKesson Corp. has agreed to pay $37 million to resolve claims brought by West Virginia officials that the company helped fuel the opioid epidemic, the two sides said Thursday.

The deal resolves one piece of opioid-related liability for McKesson but leaves open many more. The San Francisco-based distributor is among roughly two dozen companies up and down the drug supply chain that face a wave of litigation from states and local municipalities over the opioid crisis.