Application segmentation defines the end‑use functions that drive demand for C7 Oil. In the petrochemical feedstock segment, C7 Oil is distilled to produce higher‑value olefins and aromatics, accounting for roughly 35 % of total market volume due to its role in ethylene and propylene chains. The solvent application, primarily in coatings, inks, and cleaning formulations, contributes about 25 % of the market, reflecting its low volatility and compatible polarity. Fuel additive usage, where C7 derivatives improve combustion efficiency and reduce emissions, represents roughly 20 % of sales, supported by regulatory incentives for cleaner fuels. The lubricant base segment, employing C7 fractions to adjust viscosity and oxidative stability, holds an estimated 12 % share, driven by automotive and industrial machinery needs. Finally, synthetic resin production—particularly for polyurethanes and epoxy precursors—accounts for the remaining 8 %. Collectively, these applications outline the current C7 Oil segmentation and illustrate how each contributes to the overall market size.