"CM" in Oil & Gas specific terms can refer to several things, depending on the context. Here are the most common meanings:

1. Cubic Meter (m³): This is the most frequent meaning of CM in the oil and gas industry. It is the standard unit of volume used to measure natural gas, oil, and liquefied petroleum gas (LPG).

2. Construction Manager: This is a more general term used in the construction and engineering industry, including oil and gas projects. A Construction Manager is responsible for overseeing and managing all aspects of a construction project, from planning and budgeting to execution and completion.

3. Cash Management: In the context of oil and gas finance, CM can refer to Cash Management, which involves the efficient and effective management of an organization's cash flow. This includes activities such as forecasting, budgeting, and treasury management.

4. Compressor Module: CM can also refer to a Compressor Module, which is a prefabricated unit containing a compressor and all associated equipment, such as piping, valves, and instrumentation. These modules are often used in oil and gas production facilities to compress natural gas or other gases.

5. Completion Manager: In a drilling context, a Completion Manager is responsible for overseeing the completion of a well after drilling is finished. This includes activities such as setting production tubing, installing downhole equipment, and testing the well.

To understand the specific meaning of CM in a particular context, it's essential to consider the surrounding information and the broader topic being discussed.

For example, if you are reading a report on natural gas production, CM likely refers to cubic meters. However, if you are discussing a construction project for a new oil refinery, CM probably refers to Construction Manager.