K-1 Line 13K requires Form 8990 unless exempted

I am looking for an opinion as to whether I am exempted from filing form 8990 based on the nature of the partnership business. I received a Schedule K-1 from Energy Transfer (ET). It reports a number on line 13K "Excess Business Expense". Turbotax advises that I may need to file a form 8990. The form instructions provide an exemption from filing for "certain regulated utility businesses", defined to include "Gas or steam through a local distribution system; or Transportation of gas or steam by pipeline".  ET describes itself as: "Energy Transfer LP (NYSE: ET) owns and operates one of the largest and most diversified portfolios of energy assets in the United States, with more than 130,000 miles of pipeline and associated energy infrastructure." Does anyone have an opinion whether I am exempted from filing form 8990?