Houston-based Enterprise Products Partners L.P. has asked a Dallas County court to throw out a lawsuit filed last week by Dallas-based Energy Transfer Partners L.P. over a proposed pipeline joint venture that never came to fruition. Energy Transfer (NYSE: ETP) alleged in the lawsuit that Enterprise (NYSE: EDP) backed out of a deal to build a pipeline that would have run from Cushing, Okla, to the Gulf Coast so that it could pursue a similar venture with Enbridge Inc. (TSX: ENB) of Canada. A hearing on Enterprise's motion has been set for 10:30 a.m., Dec. 9, in the 298th District Court in Dallas. In its lawsuit, ETP said it formed a joint venture in April with Enterprise called Double E Crude Pipeline LLC to build the pipeline. Energy Transfer alleged that Enterprise later claimed the pipeline was not economically viable and broke the terms of the joint venture by sending out a news release without ETPâ¿¿s consent saying the Double E joint venture was terminated. On Thursday last week, Enterprise announced a deal with Enbridge to build a crude oil pipeline, called the Wrangler Pipeline, from Cushing to the Gulf Coast. ETP claims in the lawsuit that Enbridge and Enterprise discussed the new pipeline before Enterprise terminated its joint venture with ETP. The lawsuit alleged breach of contract, breach of fiduciary duty and breach of a confidentiality agreement. In a motion filed Friday afternoon, Enterprise said that there never was a formal agreement with ETP to build the Double E Crude Pipeline and therefore no agreement could have been broken. Enterprise said that a letter of agreement was signed between it an ETP in April on the proposed venture that stated the agreement would not become binding "unless and until the parties have received their respective board approvals and definitive agreements memorializing the terms and conditions of the transaction have been negotiated, executed and delivered by both parties."