42 (Based on 44(d) Priority Application) Providing advice, consultancy, and environmental information in relation to oil, gas, geothermal, and storage well engineering, construction, and drilling services of environmental engineers, chemical engineers, mechanical engineers, and service personnel; Engineering services for oil, gas, geothermal, and storage well drilling, analysis, equipment, tools, and parts; Engineering, design, and manufacture of oil, gas, geothermal, and storage well drilling rig equipment, tools, and parts; conduct engineering test, analysis, and practical procedures for hydrogen injection and equipment usage