Ann: Horseshoe 4 Well Update - Initial Test Flow Result, page-26

A given well production decreases over time. So, a given company needs to drill new wells just to keep the production the same. Not sure whether MC5A and HS4 are connected yet but even if they are connected a production rate of 15TJ would not be achieved IMO.

A newly fracted shale/tight sand well first goes up in production but once the peak rate is achieved the production rate decreases rapidly. No update on MC5A, so I assume the max production was 4.4mmcd (which is very good). The flow rate will be much less once the well is connected.