Canada's largest base oil refinery is set to close, and the country's biggest private-sector union is pushing back hard. Unifor has publicly condemned HF Sinclair's decision to shutter the facility, warning of significant job losses and economic fallout for the region. The move marks a major shift in Canada's domestic lubricant supply chain and raises fresh questions about the future of energy-sector employment.

Why the Refinery Closure Matters

The refinery, operated by HF Sinclair, is the largest of its kind in Canada, producing base oils that are essential for manufacturing lubricants, industrial fluids, and automotive oils. Its closure would remove a critical piece of domestic infrastructure, forcing Canadian manufacturers to rely more heavily on imported base oils. That dependency could lead to higher costs and supply chain vulnerabilities down the line.

Unifor, which represents thousands of workers in the energy and industrial sectors, did not mince words in its response. The union framed the shutdown not just as a corporate decision, but as a blow to Canadian industrial sovereignty and to the communities that depend on the refinery for stable, well-paying jobs.

Unifor's Core Complaints

  • Job losses: The union warns that hundreds of direct jobs and countless indirect positions are at risk.
  • Economic impact: Local suppliers, contractors, and service providers could face cascading revenue losses.
  • Lack of consultation: Unifor says the decision was made without meaningful engagement with workers or the community.
  • Strategic short-sightedness: The union argues that closing domestic refining capacity undermines Canada's long-term energy security.

HF Sinclair's Position and the Broader Context

HF Sinclair has not yet provided a detailed public explanation for the closure, but the decision comes amid a period of volatility in global refining markets. Base oil demand has fluctuated in recent years, and margins for standalone base oil production have come under pressure in some regions. Industry analysts note that refiners worldwide are re-evaluating their portfolios, with some choosing to pivot toward higher-margin products or renewable fuels.

Nevertheless, the timing of the announcement has raised eyebrows. Energy markets remain sensitive to geopolitical disruptions, and Canada has been positioning itself as a reliable energy supplier to allied nations. Shuttering the country's largest base oil refinery appears, at least on the surface, to run counter to that narrative.

What's at Stake for the Local Economy

The refinery is not an isolated operation — it anchors a broader industrial ecosystem. Nearby businesses that provide maintenance, logistics, and specialty chemicals all rely on the refinery's ongoing operations. If the closure proceeds as announced, the ripple effects could be felt for years, affecting housing markets, local tax revenues, and public services.

Unifor is now calling on federal and provincial governments to intervene. The union is asking policymakers to explore every avenue, from regulatory incentives to ownership transitions, that could keep the refinery running or at least soften the blow for affected workers.

What Happens Next?

The immediate next step is likely to be a series of high-stakes meetings between Unifor leadership, HF Sinclair executives, and government officials. The union has signaled that it will not accept the decision quietly and is prepared to escalate its campaign if necessary. That could include public demonstrations, political pressure, or legal challenges, depending on how the situation evolves.

For workers at the refinery, the coming weeks will be filled with uncertainty. Many have spent decades at the facility and now face an unclear future. Unifor has pledged to fight for severance packages, retraining opportunities, and transition support, but the union acknowledges that no package can fully replace the stability of a permanent job.

Potential Scenarios

  • Full closure: The refinery shuts down as announced, leading to mass layoffs and a permanent reduction in Canadian base oil capacity.
  • Delayed timeline: Political and union pressure forces HF Sinclair to extend the shutdown period, giving workers more time to transition.
  • Sale or partnership: Another operator steps in to acquire or operate the refinery, preserving some jobs and capacity.
  • Government intervention: Ottawa or the provincial government offers subsidies or other incentives to keep the facility running.

Key Takeaways

Unifor's condemnation of HF Sinclair's decision highlights a growing tension between corporate profitability and community stability in Canada's energy sector. The closure of the country's largest base oil refinery would have wide-ranging consequences, from job losses to increased reliance on foreign imports. While HF Sinclair's rationale remains unclear, the union is making it clear that this fight is far from over. The coming weeks will determine whether this shutdown becomes a painful reality or a catalyst for a new approach to Canadian energy policy.