Tight oil reservoirs - hydrocarbon accumulations in low-permeability formations requiring hydraulic fracturing for commercial production - have transformed global oil supply. EPC services for tight oil development encompass drilling pad construction accommodating multiple directional wells, drilling programs with horizontal sections extending 1500- 3000 meters through target formations, and hydraulic fracturing operations pumping 5000-15000 cubic meters of fluid and 200-500 tonnes of proppant per well to create fracture networks enhancing permeability. Surface facilities include well testing equipment, separation systems processing oil, gas, and water, storage tanks for oil and produced water, and pipeline connections to gathering systems. Water management infrastructure supplies fracturing water (requiring 2-8 million gallons per well), treats produced water containing dissolved solids and hydrocarbons, and disposes or recycles wastewater. Gas gathering and processing facilities handle associated natural gas production, with compression, dehydration, and processing removing impurities before pipeline transport or on-site power generation. Advanced technologies include multi- stage fracturing systems optimizing proppant placement, real-time fracture monitoring using microseismic sensors, and artificial lift systems (electrical submersible pumps, gas lift) maintaining production as reservoir pressure declines. Environmental management addresses methane emissions through leak detection and repair programs, flaring reduction via gas capture infrastructure, and spill prevention with secondary containment systems.