On middle May 2020, PEMEX was drilling below about 6,020 m on the Yaxjut 1SON new-field wildcat (NFW) stratigraphic test in the AE-0047-3M-Agua Dulce-06 (AE-0133-Cuichapa) exploration entitlement block. The well is located in the north-western area of the block and was previously named the Lacab 1EXP prospect, approximately 1.2 km south-west of the Tolouque 1A NFW plugged and abandoned dry by PEMEX in 1962 at a final total depth (TD) of 5,665 m. The NFW was spudded on 20 August 2019 and has a proposed total depth (PTD) of 6,630 m and is targeting the Cretaceous from 4,555 m to 4,605 m and Upper Jurassic Kimmeridgian from 5,530 m to 5,580 m on a complex salt related and faulted anticlinal structure. The well has estimated unrisked prospective resources of 91 MMboe. Pemex estimated the drilling cost at USD 29.2 million, and completion cost at USD 8.53 million.   On 27 August 2014, the 1,053.63 sq km AE-0047-3M-Agua Dulce-06 exploration entitlement block was granted to PEMEX and was relinquished on 27 August 2019. It has been superseded by the AE-0133-Cuichapa entitlement granted on 28 August 2019 and covers an official area of 1,057.49 sq km.     On 12 April 2019, the CNH      approved a PEMEX request to modify the exploration plan for the      AE-0047-3M-Agua Dulce-06 exploration entitlement block. This represents      the second modification, the previous one was approved on 7 December 2017.      PEMEX has updated and changed some previous prospect names and added one      prospect. The modified plan includes the base case plan of re-processing      866 sq km of 3D seismic and the drilling of two new-field wildcats (NFWs).      The contingent commitment includes the drilling of one additional NFW.      PEMEX will attempt to drill the two commitment wells prior to the 27      August 2019 expiry of the two-year exploration period extension. The firm      commitments will have PEMEX drill two NFWs, the Vinik 1EXP and the Yaxjut      1EXP. The contingent incremental commitment is the drilling of the      Andarani 1EXP NFW. The total budget for the base case exploration program      is USD 76.22 million with USD 73.01 million allocated to drilling the two      firm commitment wells. The incremental contingent activity has a total      budget of USD 102.4 million with USD 98.65 million allocated to drilling      three wells.  On 9 May 2019, the CNH      approved a PEMEX drilling permit request to drill the Yaxjut 1SON      new-field wildcat (NFW) stratigraphic test.
Yaxjut 1 nfw (Pemex 100%) had been tested oil and gas in the vertical, located on the AE-0133-Cuichapa tract, in the Chiapas Fold Belt. In December 2019 the well flowed an average of 2,702 bo/d and 7.81 MMcfg/d.