Advertising and marketing services, namely, promoting goods and services for businesses and professionals situated in the oil and gas industry; providing an online searchable database featuring employment and career opportunities in the oil and gas industry; promoting goods and services of professionals and businesses in the oil and gas industry via a global computer network; advertising, marketing and promotional services related to the oil and gas industry for the purpose of facilitating online networking opportunities for business purposes; providing online career networking services and information in the fields of employment, recruitment, job resources, and job listings; providing networking opportunities for individuals seeking employment and other business opportunities in the oil and gas industry; online professional networking opportunities in the oil and gas industry; providing online computer databases and online searchable databases for business and professional networking, for professionals in the oil and gas industry; online service for connecting social network users with businesses in the oil and gas industry; providing an online platform for talent acquisition and career networking services, in the oil and gas industry, utilizing blockchain technology and blockchain verification systems; automated contract management to facilitate hiring of employees and/or independent contractors by businesses in the oil and gas industry; automated contract management, invoicing and reconciliation, using blockchain technologies, to facilitate procurement of products and services from other suppliers for businesses in the oil and gas industry; business project management services, namely, development of processes for management of projects and development of project management tools for utilization in the oil and gas industry