I thought you might have been doing the same SSSP work. SSSP, is SaudiArabian Strategic Storage Project. Maybe you didn't see them. They were not really visible on the surface, "Top Secret", super large, all underground bulk plants. It was built for SA Ministry of Defense and was the largest project in SA during the 90s. They all had an interface with SAramco facilities. The 5 underground sites were directly connected to the refineries, import terminals and/or the regular SA Bulk Plants. Just the Riyadh site alone had 12M bbls of jet, gas and diesel in 22 underground caverns. The Riyadh plant connected only to the refinery tanks. Jeddah connected to both the NJBP and JORC. Other sites were at Yanbu-Medinah, Jeddah-Mekkah, Buraydah and Jizan-Abbah. The Jizan-Abbah pipeline was 160km of 14" ANSI#900 and reached an elevation of 3015m in an 18km long tunnel under the peak just before Abbah and had 3 pump stations. Those 3 pump stations were the only visible surface facilities on the whole project, other than some offices, fencing and guard facilities. It kept me interested for quite awhile. SAramco has since taken over day to day operation responsibility.
We couldn't get away with any variations from SA stds. I once even had to apply for a variation for all SCADA system circuit boards, because SA speced replaceable components on the cards, but the electronics industry had just recently switched to supplying all machine soldered, unreplaceable microcomponents.
--Einstein gave the same test to students every year. When asked why he would do something like that, "Because the answers had changed."