NEW YORK—Pipeline and storage terminal operator Energy Transfer Partners LP (NYSE: ETP) said on April 2 that Latitude Technologies, a third-party service provider, was hit by a cyber attack.

“This situation has not impacted our operations as we are handling all scheduling in-house during this time,” spokeswoman Vicki Granado said in an emailed statement.

Latitude provides electronic data interchange (EDI) services to energy companies that allow computer-to-computer exchange of business documents.

Latitude’s EDI system is unavailable until further notice, according to a shipper notice seen by Reuters.

Energy Transfer is evaluating Latitude’s status and will be testing to assure safe file transactions, the notice said. Latitude said on its website that it had completed the initial restoration of its EDI services as of 7:49 a.m. on April 3.

Plano, Texas-based Latitude did not immediately respond to a request for comment.

Latitude provides services to more than 100 natural gas pipelines, storage facilities, utilities and energy marketers. Its customers include ExxonMobil and Chevron, according to its website.