$AESI vs $PUMP: Weighing Two Permian Energy-Service Names in the Shift Toward Power Generation Both AESI and PUMP are Permian Basin energy-services names diversifying into power generation, but their core franchises differ: proppant (frac sand) for AESI versus hydraulic fracturing for PUMP. AESI has captured renewed attention on agreements tied to AI data-center power projects, while PUMP has faced recent share-price pressure despite a strong prior 12-month run. Both companies currently post negative net income, meaning valuation must be assessed on sales and cash-flow metrics rather than earnings multiples.