Lease ending date

Can anyone clearly define needs to happen for Development to be considered started. I have a lease that is set to expire. The lease will expire on a given date unless “development as begun”.

What exactly does that mean? A spudded well? Pad prep?

Any clarification would be much appreciated?

The answer will depend upon what your lease says and what state and county you are in.

The verbiage in the lease states “engaged in Drilling or rework operations”. We are in Williams county, ND.

You can look up your section, township and range and see if there are permits.
https://www.dmr.nd.gov/oilgas/

What section, township and range?