NuStar Energy L.P. — Cyborg Score 7/10

Strong
Oil and Gas Pipelines

Strategic Profile

NuStar maintains a strategic focus on midstream energy infrastructure with assets positioned across key U.S. markets and international operations. The company leverages its integrated pipeline, terminal, and refining assets to provide logistics solutions while maintaining disciplined capital allocation targeting projects with short payback periods and strong returns.

Cyborg Score Rationale

NuStar operates resilient midstream infrastructure with strong volumes and diverse revenue streams from pipelines, terminals, and refining. Post-acquisition by Sunoco (May 2024), the company benefits from parent company integration while maintaining its operational focus on logistics and energy transport.

Top Insights

  • Strong Permian crude system volumes, reaching record-breaking throughputs exceeding 500,000 barrels per day
  • Diversified asset footprint includes ~8,500 miles of pipelines, 85+ terminal facilities, and 90+ million barrels of storage capacity
  • Three Rivers refinery optimization project underway (as of June 2026) targeting higher diesel output and margin improvement without major new construction
  • Acquisition by Sunoco in May 2024 provides access to parent company capital and strategic resources while maintaining operational autonomy

Named Competitors

  • Magellan Midstream Partners — Large crude and refined product pipeline operator
  • Plains All American Pipeline — Diversified midstream energy company
  • Enbridge — Integrated energy infrastructure operator
  • Phillips 66 Partners — Downstream and midstream energy company

Recent Developments

  • (June 2026) Three Rivers refinery optimization project ongoing, targeting higher-value distillate products and improved integration with logistics network
  • (May 2024) Acquired by Sunoco, transitioning from public to private ownership
  • (2022) Extended maturity of $1 billion unsecured revolving credit facility; demonstrated self-funding capability from internally generated cash flows

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