Philadelphia Energy Solutions (PES), operators of the former Sunoco refinery in South Philadelphia, announced Thursday a recall of some potentially unsafe kerosene sold through nine Pennsylvania and New Jersey outlets, including stations in West Philadelphia, Quakertown and Burlington.

PES said it was conducting a "voluntary recall" of kerosene sold between Dec. 10 and Dec. 18 because it "could create a potential safety hazard due to a low ignition temperature, which may cause fires in space heaters or other equipment." Cherice Corley, the company's spokeswoman, declined to comment about how the fuel got into the market.

PES identified the outlets as US Gas in Quakertown; Riggins on 52nd Street in Philadelphia; Scotty Gas in East Stroudsburg, Pa.; Riggins in Quinton, N.J.; Riggins in Pleasantville, N.J.; Cardiff Riggins in Egg Harbor Township, N.J.; South Vineland Riggins in Vineland, N.J.; Nesco Riggins in Hammonton, N.J.; and Burlington Fuel Express in Burlington, N.J.

The company urged customers with the fuel to call 1-800-261-3707.

Contact Andrew Maykuth at 215-854-2947, amaykuth@phillynews.com or @maykuth on Twitter.