Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date | Company | Business | Country | Value ( USD ) |
| --- | --- | --- | --- | --- |
| Unknown | Celerity Energy Partners San Diego LLC | Energy | United States | Unknown |
| 2009 | Cogent Energy, Inc. | Green Building | United States | Unknown |
| Unknown | ENOC Securities Corporation | Securities | United States | Unknown |
| Unknown | EnerNOC Ltd. | Energy | Canada | Unknown |
| Unknown | EnerNOC UK Limited | Energy | United Kingdom | Unknown |
| Unknown | Mdenergy, LLC | Energy | United States | Unknown |
| Unknown | Pinpoint Power DR LLC | Energy | United States | Unknown |
| Unknown | South River Consulting, LLC | Energy | United States | Unknown |
| Unknown | Global Energy Partners, Inc. | Energy | United States | Unknown |
| 2011 | M2M Communications Corporation | Energy | United States | Unknown |
| Unknown | EnerNOC Australia Pty Ltd | Energy | Australia | Unknown |
| Unknown | DMT Energy Pty Ltd | Energy | Australia | Unknown |
| Unknown | Energy Response Holdings Pty Ltd | Energy | Australia | Unknown |
| Unknown | EnerNOC Pty Ltd | Energy | Australia | Unknown |
| Unknown | EnerNOC New Zealand Limited | Energy | New Zealand | Unknown |
| Unknown | High Street Corporation Pty Ltd | Energy | Australia | Unknown |
Question:
What company has an unknown date and is an energy business?
Answer:
Celerity Energy Partners San Diego LLC, EnerNOC Ltd., EnerNOC UK Limited, Mdenergy, LLC, Pinpoint Power DR LLC, South River Consulting, LLC, Global Energy Partners, Inc., EnerNOC Australia Pty Ltd, DMT Energy Pty Ltd, Energy Response Holdings Pty Ltd, EnerNOC Pty Ltd, EnerNOC New Zealand Limited, High Street Corporation Pty Ltd