Chevron scores 4 points higher than Saudi Aramco on SINK's sustainability index.
Chevron is more sustainable according to SINK's open sustainability index, scoring 16/100 vs Saudi Aramco's 12/100, a difference of 4 points.
Chevron scores 16/100 on the SINK sustainability index (Significant gaps). Chevron's absolute emissions are rising: Scope 1 went from 52 Mt to 54 Mt and use-of-products Scope 3 from 405 Mt to 432 Mt (2023 to 2024). Its targets are intensity-only, with no absolute reduction path. It lobbies against climate policy, belongs to trade groups opposed to it, and is a defendant in 34 climate lawsuits. Its renewable energy and nature commitments are small relative to its operations.
Saudi Aramco scores 12/100 on the SINK sustainability index (Critical concern). Saudi Aramco is the world's largest corporate emitter, refusing to disclose Scope 3 emissions (~1.6–1.84 Gt CO₂e annually, 4.4% of global emissions). Operational emissions are rising, targets are intensity-only while production expands, and the company actively lobbies against climate action. Scope 3 non-disclosure alone is disqualifying.
Both companies are rated on the same 10-question SINK rubric: Scope 1/2/3 carbon footprint, energy source, nature and biodiversity, resource use, water, emissions trajectory, science-based targets, transparency, and controversies. Scores are 0–100, based on public data, and fully reproducible.
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