MPLX look through play on Energy Complex?

Have gone long Energy in last week via MPLX. Energy broke Hedgeye Trend mid November as product of Quad 2 environment. Energy performs well as Real Rates/Inflation increase, so offers a natural hedge. My broker (I'm in UK) won't allow me to get the wider Energy Complex exposure, so went long its largest constituent part MPLX (makes up ~15% of total factor). Very strong trend emerging and has outperformed XLE in last year - while overbought in latest session I want to remain long energy given entry point and Inflation Up | Growth Up (Q1 GDP will likely be strong on RoC basis) basis. Significant reduction in growth (with demand side shock) and price, volume and vol data to support would get me out.