Upstream off-plot pipelines consist of three main services: crude, associated and non-associated gas, and disposal/injection water. Those pipelines are crucial for maintaining a healthy and sustainable production of both, crude production & processing systems, in addition to a reliable downstream products delivery. Given the harsh environment of the fluids those pipelines transport and the terrain they have to be installed in, they suffer an inevitable deterioration risk, which might cause a significant lifecycle capital and environmental ramifications if not appropriately managed. This risk that can be mitigated by establishing an effective system that can cover two areas of interest: identification of risky assets at the earliest stage, and rehabilitate it timely. This paper seeks to present a detailed and systematic methodology to address these challenges in Saudi Aramco which has a huge network of assets that are spread across various terrains across the Kingdom. The process undertaken involves developing first a clear identification process of critical lines according to a set of objective criteria which takes into consideration their working condition, including age and type of service, water cut, gas-to-oil ratio, etc. Then, the second one is the Establishment of a clear set of requirements to complete the Front-End-Loading in an expedited manner; thus, ensuring the determination of the Front-End engineering level to be undertaken. Considering this, the identification was set in place, followed by allocating the lines replacement\rehabilitation plans into an investment program, where many funding vehicles within a company can be used.