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CVR's Coffeyville refinery. Image courtesy of CVR Energy.

CVR Refining’s Coffeyville, Kansas refinery resumed normal operations last week after a fire in July damaged the plant’s isomerization unit and distributive controls system.

The plant resumed operations within the company’s initial projected time frame, Texas-based CVR said Tuesday.

The refinery has a capacity of 115,000 barrels per day.

CVR told state regulators that it would perform upgrades to the refinery that were scheduled for next year during the repairs. However, details about the upgrades and plans for scheduled maintenance were not disclosed.

The blaze broke out around midnight on July 29 and prompted an immediate shutdown.

Four employees were injured and hospitalized.

The Coffeyville Fire Department said the employees were working on a pump when it caught fire and flames engulfed the area.

The cause of the fire is still being investigated.

The refinery is about 100 miles from the large crude oil trading and storage hub in Cushing, Oklahoma. CVR’s Coffeyville, Kansas and Wynnewood, Oklahoma refineries receive crude from the hub.

Coffeyville is a full coking medium-sour crude oil refinery that primarily produces gasoline, diesel fuels and propane.