In Reservoir Description , fourth-quarter revenue was $92.3 million , up more than 5% from the third quarter and up 6% from the prior-year quarter, according to CEO Larry Bruno. Segment operating income (excluding items) was $12.7 million , up from $11.6 million in the third quarter, and operating margin expanded to 14% (up 60 basis points sequentially). Management cited strong utilization and operational efficiency across the international laboratory network, while noting that sanctions and geopolitical di ...