This paper is a survey based on the deployment of Wireless Sensor Network in the oil and gas industry especially in refineries, petrochemicals, hazardous under water operations and production platforms. The work dealt with networks that acquire data and monitor oil and gas production processes either for effective measurement or monitoring of desired field parameters such as pressure, temperature, flowrates and others necessary for safety and optimization of the production process where application of wired sensors and other gathering tools proved prohibitive. Wireless Sensor Networks are deployed to remotely monitor corrosion of pipeline, equipment condition, subsea installations, production performance, natural gas leaks and status of reservoir in real-time. Data acquired through WSN can be subjected to further analysis that can yield further insights that yield innovative solutions including cost effectiveness, faults tolerance and preventing problems.