monitoring competitor I've never heard of Questor wantsto expand into monitoring.
Qube Technologies provides an end–to-end continuous monitoring solution for oil and gas producers that detects, localizes, and quantifies methane emissions. 
The Qube platform consists of three parts:
(i) an Industrial Internet of Things (IIoT) device;
(ii) a cloud-based analytics platform; and,
(iii) a web-based user dashboard.
The IIoT devices are deployed in the field and provide time-synchronized emissions and environmental data to the cloud. The cloud-based data and analytics platform has three components: the data collected from IIoT devices; the cloud-based infrastructure used to store and analyze the data; and, the algorithms that use data stored on the infrastructure to train AI/ML models that can infer emission location, flow rate, and classification.
Qube’s dashboard visualizes company wide emissions data that includes uninterrupted streams across all sites, and the ability to roll up emissions by equipment or site to see emissions trends over time. The data provided enables operators to cost-effectively manage emissions across geographically distributed assets with ease.