Plains All American Pipeline, L.P. (PAA) Income Statement

The 11.6% YoY decline in TTM revenue appears driven by lower commodity prices and narrower basis spreads, not necessarily reduced physical throughput. The sharp Q2 2026 rebound to $17.7B, up 66.3% from Q1, indicates a recovery in merchant volumes or price realizations. Investors should monitor whether this trajectory reflects a sustainable uptick or a one-off quarter, given the historical volatility in PAA's top line.

PAA's gross margin of 6.0% is structurally low compared to EPD's 13.6% and ET's 21.8%, reflecting the pass-through of crude oil costs in its merchant segment. The Q2 2026 gross margin of 4.6% was below the trailing average, suggesting potential pressure from narrower basis spreads. This margin profile leaves PAA sensitive to commodity price volatility, though its fee-based pipeline assets likely provide a more stable underlying margin that is obscured by the consolidated figures.

The sequential revenue increase of 42.7% in Q2 2026 translated into a 50.2% rise in operating income, suggesting modest operating leverage as SG&A grew at a slower pace. However, over the TTM, operating margins have remained in the 2-4% range, implying that the high fixed-cost base is not scaling efficiently with revenue swings. This may indicate that PAA's cost structure is more variable than typical midstream operators, given the merchant component.

The cost structure is heavily weighted toward COGS, which is expected given PAA's buy-sell merchant activities. SG&A has remained relatively stable at $80-110M per quarter, indicating disciplined overhead control. However, the thin gross margin leaves little room for error, and any increase in SG&A or unexpected operating costs could quickly erode profitability.