| July 2016: Acquisition of Petrobras Argentina |
| Pampa acquires the controlling stake of Petrobras Argentina, thus becoming one of the leading energy companies in Argentina. |
| November 2016: Sixth Capital Increase due to Merger with Petrobras Argentina |
| Pampa increases its capital stock in 141 million shares at AR$1 per share. |
| November 2016: Effective Merger with Petrobras Argentina |
| Pampa and Petrobras Argentina operate as a single entity, setting the effective date of merger as of November 1, 2016. |