The Importance of O-Rings In Oil & Gas Production
Posted by Bianca Arizmendi on May 13th 2025
O-Rings' Role in Oil and Gas
The role of O-rings is vital for ensuring smooth operation. They are designed to prevent leaks, ensure safety, and secure efficiency in the operation of equipment. Though they play a small part in the process, they are used for upstream, midstream, and downstream applications. Oil and gas machinery operates under extreme pressure and temperature, so it's important to consider the material selection of O-rings and seals. Different O-rings can have specific features that apply to other applications.
Brands we Supply
Here at Croft Supply, we offer well-known brands such as Modco, Stark, and Kimray. Known for being a high-quality sealing solution, they are innovating the oil and gas industries.
Modco rings are quick-opening closures with advanced material and are customizable. This design is best for pipeline applications like filter separators and pig traps. The options we have available is Modco Figure 500 Closure, ranging in sizes 2”- 48”.

Stark O-rings are circular gaskets with a round cross-section and are engineered to perform under extreme conditions. These heavy-duty O-rings are able to eliminate leaks while being long-lasting. They are one of the best for high-performance machine operations. The options we have available are S-500 Viton and S-500 Buna, ranging in sizes 2”-72”.

Kimray O-rings are also used for a wide range of applications. Croft Supply offers Buna, a synthetic rubber good for application dealing with corrosive elements in flow production. We offer it in a range of sizes 4”-8”.

By investing in high-quality O-rings, they reduce the need for emergency repairs, minimizing downtime. This creates longevity and duration in equipment, making O-rings a cost-effective solution in oil and gas operations.