What Is Cross Country Pipeline? Cross Country Pipe Line Is Used for Transporting Oil, Liquid, Gas or any chemicals. Over land, often across large distances and sometimes across multiple countries Who Invented Cross Country Pipeline? Steel Welded Pipes Are First used In Pipelines, And That Is Invented by WILLIAM MURDOCK in 1800 s. He Created This Pipe Line To Bring Coal gas From His Well To Home. World’s First Cross Country Pipe Line? DRUZHBA PIPELINE Is The First Cross Country Pipe Line Constructed In 1964. It travels nearly 4000 km From Russia to German. Moreover, The Interesting Fact is This Pipe Line Is Well Maintained and It Still Running. Three Types of Pipelines: o Gathering system o Transmission systems o Distribution Systems There Are Four Main Stages Of Pipelining: • Fetch(F), • Decode(D), • Execute(E), • Access request(A), • Response(R), • Write back(W)