Energy & Refining
Powering industry with purpose.
Diamond Shamrock Refining LP combines disciplined operations, technical expertise and a commitment to responsible energy production.
24/7
Operational focus
4+
Core capability areas
100%
Safety-minded culture
1
Integrated team
Our Company
A refinery company focused on what matters.
Diamond Shamrock Refining LP is a modern refining and industrial energy company. We turn crude oil into the fuels and products that keep transportation, agriculture, construction and industry moving, and we do it with a long-term view of people, assets and the communities around us.
Our shamrock-and-diamond identity reflects two things we value: the good fortune of strong partnerships, and the durability of well-built, well-maintained assets.
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Operational discipline
Clear processes and a focus on dependable performance. -
People first
Safety, training and teamwork are part of how we operate. -
Responsible growth
Continuous improvement guides our technology and sustainability priorities.
What We Do
Capabilities across the energy value chain.
A flexible operating model designed around safe production, dependable logistics and responsible resource management.
Refining & Processing
Structured processing operations with a focus on quality, reliability and asset performance.
View capabilities →Storage & Logistics
Coordinated infrastructure supporting movement, storage and delivery across operational requirements.
View capabilities →Technology & Improvement
Practical innovation, monitoring and continuous improvement designed to strengthen operations.
Our approach →From Crude to Customer
How a barrel becomes a product.
Every step of our process is planned, monitored and verified.
Receive
Crude oil arrives by pipeline, rail or truck and is sampled, measured and moved into storage.
Distill
Heated crude enters the distillation column, where it separates into gases, gasoline, jet fuel, diesel and heavier streams.
Upgrade
Downstream units convert and treat intermediate streams into higher-value, cleaner-burning products.
Test
Our laboratory checks every batch against specification before it is released.
Deliver
Finished products are scheduled and loaded for safe, on-time delivery to customers.
Products
What we produce.
Gasoline
Motor gasoline blended to meet seasonal and regional specifications.
Diesel
Ultra-low-sulfur diesel for trucking, rail, farming and construction.
Jet Fuel
Kerosene-range fuel produced and tested for aviation requirements.
LPG & Propane
Liquefied petroleum gases for heating, industry and fuel supply.
Asphalt
Paving-grade products for highways, airports and infrastructure.
Feedstocks
Intermediate streams supplied to petrochemical and industrial customers.
Gallery
Inside our operation.
Looking for a reliable supply partner?
Tell us about your volumes, products and delivery needs and our team will respond promptly.