2026 Valero Report on Guiding Principles - Report - Page 20
impactful areas. Below is a list of some of the most
mature technical assessments and focus areas:
Process Safety and Reliability
Our process safety and reliability
programs proactively contribute to
our goal of operational excellence.
• MAIN – Inspection and mechanical integrity
• ESARN – Electrical systems
• ROTO – Rotating equipment
• PACE – Process automation and controls
effectiveness
• CYBER – Cybersecurity
• AOE – Alkylation operations excellence
• ORA – Operational reliability
Valero employs an industry-leading technical process
safety and reliability assessment program to drive
昀椀rst-quartile reliability performance and help maintain
the safety of our employees and communities. This
program provides safeguards for certifying that our
equipment is correctly designed, regularly maintained
and safely operated.
These assessments leverage the expertise of
our technical subject matter experts who work
alongside site champions to evaluate the design and
effectiveness of each site’s speci昀椀c reliability programs.
The results identify areas of opportunity, which
are prioritized to help each site achieve our overall
operational excellence goals. Our ORA, MAIN and ROTO
assessments were updated in 2024 to account for
progress driven through our CTEMS annual focus areas
and site-speci昀椀c improvement plans. These updated
assessments will allow priorities and resources to shift
to remaining opportunities and new emerging issues.
Through CTEMS, 22 we have mature processes in place
to analyze process safety events (PSE). Understanding
the reasons for a PSE is the 昀椀rst step. We then take
necessary actions to prevent repeat failures, address
unreliable equipment or improve speci昀椀c program
expectations to ensure safe and reliable operations.
Valero began developing a suite of technical
assessments over 10 years ago to inform the annual
strategic resource planning process and ensure
continuous improvements are made in the most
Mechanical Availability
Our high mechanical availability rate is a result of our highly reliable
re昀椀nery operations and is underpinned by our CTEMS expectations of:
In 2025, Valero achieved
its highest-ever re昀椀nery
mechanical availability
at 97.5%, re昀氀ecting the
company’s reliable
operations and strong
performance record.
• Avoiding unplanned downtime
• Implementing our structured turnaround planning process
• Minimizing environmental impacts
• Ensuring ef昀椀cient use of resources
In addition to our capital investments in reliability, our comprehensive
reliability assessments, proprietary management systems and internal
strategic planning process help reduce environmental incidents and
improve safety.
97.5%
97.5%
97.0%
96.5%
96.0%
95.5%
95.0%
2010
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