That article doesn't say what you think it does.

Last paragraph.

"In any case, though the administration's growing ties with the Kingdom (given the influence that Riyadh wields in OPEC+ policy) may in retrospect provide cause for concern, there simply isn't sufficient evidence to show that the Trump Administration or Greg Abbott had any executive or final oversight on the sale of Port Arthur to Saudi Aramco."

Further up.

"In the split, Saudi Aramco took full ownership of Port Arthur, Texas, while Shell took ownership of refineries in Norco and Convent, Louisiana."

Saudi Aramco 100% owns Port Arthur.