Abstract— Oil and Gas operations require the maintenance of large inventory of spares, equipment and materials all referred to in this work as assets. The differences in the arrival time and the fact that the receiving personnel may be different from the personnel that ordered the items and also different from the personnel that may eventually check out the items from the warehouse makes it necessary to have an automated system for monitoring the inventory. The large number of inventories maintained by the oil and gas process and the multiplicity of teams increases the risk of loss of items due to unauthorized release of items from the warehouse and the challenges of managing inventory movement. This system presents the development of an RFID based real-time inventory tracking system which makes it mandatory for the suppliers to embed all supplied items with RFID Tags. The warehouse is to have RFID readers installed in each section and also at all entrance and exit points. The system logs personnel access and movement within the warehouse and it is also able to track items wrongly placed in the warehouse. It monitors the entire asset and reports the movement of each asset to the team leads and Managers of the team that made the item procurement. The system maintains a database of all items in the warehouse and is capable of generating reports of the entire inventory and their history. The system also integrates a reader at the main exist gates of the premises. For an item to exit the company premises, the supervising manager will be required to give a final approval by email to enable the item exit the company premises. This system will minimize the risks associated with illegal removal of items from the warehouse as the movement of the items is tracked in real- time, the access control monitors the staff access into the warehouse and matches it with the item movement out of the warehouse. Managers are aware of the item’s movement from the warehouse and in the event of item leaving the warehouse without authorization and without any record of its exit being approved by the required manager, a watch list is created at the security post to check for such items in the event that the RFID tags have been removed. This system will enable a more robust asset management process for oil and gas inventories and minimize the risks associated with unauthorized removal of inventory from the warehouse. Index Terms—Active Tag, Asset Tracking, Inventory Management, Mobile device, Mobile RFID reader. Manuscript received March 29, 2017; revised July 04, 2017. This work was supported by Covenant University Francis E Idachaba is currently an Associate Professor of Communication Engineering in the department of Electrical and Information Engineering in Covenant University Ota Ogun State e-mail: Francis.idachaba@covenantuniversity.edu.ng I. INTRODUCTION NVENTORY usually accounts for the largest expenditure in most operations expenses. This makes effective inventory control and management a vital function to help insure the continued success of operations and the projects. The effectiveness of inventory control is typically measured by how successful a company is at reducing inventory investment, meeting its customer service goals, and achieving maximum throughput and cost containment [1].Inventory can also be defined as items required in the manufacturing process and due to the need to eliminate delays associated with the procurement process, they are kept for future use. Typical inventories include 1. Materials stock (raw materials, components) 2. Work-in-progress stock 3. Finished products stock 4. Spare parts and auxiliary materials stock Procedure for Paper Submission II. INVENTORY MANAGEMENT Effective inventory control and management is rooted in three distinct but interconnected processes [1] [3]. These processes are 1. Physical: This is the most visible and critical part of the inventory management process. It includes activities such as receiving, movement, stocking, and overall physical control of inventories. For large companies with several teams, these activities continue all year round with different teams placing orders and receiving delivery of their items all year round. Barcoding stock keeping units (SKUs), consigning, and kit repackaging are notable aspects of physical inventory control. Another daily responsibility of physical control is data entry. Physical Inventory control ensures that all items that either enter or leave the inventory system are tracked and all the required paperwork are filled out each day and are tracked using the company’s ERP system. 2. Planning: Inventory planning complements the physical inventory control in that it emphasizes a systematic management of the inventory acquisition process. Inventory planning and ordering relies upon various methodologies that in turn depend upon varying rates of demand. Thus companies commonly utilize material requirements planning (MRP) in high sales volume scenarios or kanban in a lean, just-in-time (JIT) environment. JIT systems base purchases of new stock upon customer demand as it happens. Whether stock is ordered for regular arrival by the truckload or by RFID Applications for Asset Monitoring and Multi-Level Asset Tracking Francis E. Idachaba I Proceedings of the World Congress on Engineering and Computer Science 2017 Vol I WCECS 2017, October 25-27, 2017, San Francisco, USA ISBN: 978-988-14047-5-6 ISSN: 2078-0958 (Print); ISSN: 2078-0966 (Online) WCECS 2017