![Petro-king]( "Petro-king")
Petro-king Oilfield Technology Ltd.( stock code: 2178） is a leading
independent China-based provider of high-end oilfield services
specializing in well drilling and completion. Its services mainly
include technical consultation, project management, well drilling,
completion, stimulation, production, surface equipment, and testing
equipment in oilfield. It also provides associated products.