On 6 December 2019, PEMEX issued a press release indicating that the company has confirmed that the Quesqui Field is the most important discovery in the onshore Sureste Basin since 1987 with estimated 3P reseves of 500 MMboe. President Obrador and PEMEX Director General Octavio Romero made the announcement at the location of the Quesqui 1DEL outpost currently drilling in the AE-0053-3M-Mezcalapa-03 (Campo Quesqui), Quesqui Oriental evaluation entitlement block during early-December 2019. The PEMEX press release further stated that with the results of the Quesqui 1EXP discovery and seismic data, the company has determined that the Quesqui Field holds 3P reserves of 500 MMboe up from its original 3P estimates of 40 MMboe. It is speculated that information from the Quesqui 1DEL has improved the seismic interpretation of the structure or the Cretaceous secondary target in the Quesqui 1DEL had strong shows and may also be productive. Mr Romero indicated that the field covers 34 sq km and it will be developed with 11 wells. Production estimates are for 300 MMcfg/d and 69 Mbc/d in 2020 and 410 MMcfg/d and 110 Mbc/d in 2021.  PEMEX was drilling below 4,400 m on the Quesqui 1DEL directional outpost in the AE-0053-3M-Mezcalapa-03 (Campo Quesqui), Quesqui Oriental evaluation entitlement block during late-November 2019.     The outpost was spudded on 7      August 2019.  This is the first      appraisal well for the Quesqui 1EXP discovery.     PEMEX      is drilling the Quesqui 1DEL from the Quesqui 1EXP discovery well pad as      the surface location (SL). The 1DEL is being drilled directionally      north-west of the discovery with the bottom-hole location (BHL) landing      point approximately 1,700 m north-west.   It      has a proposed total depth (PTD) of 7,700 m measured depth (MD) and 7,316      m true vertical depth (TVD).   The      primary target for the outpost is the Upper Jurassic Kimmeridgian from      6,556 m to 6,571 m true vertical depth (TVD) and a secondary target is the      Middle and Lower Cretaceous from 6,322 m to 6,406 m TVD.  The      outpost has unrisked prospective resources estimated to be 10 MMboe.  The      total estimated budget for drilling the well is USD 26.98 million and USD      10.17 million allocated for completion operations.  On      6 August 2019, the CNH approved the drilling permit submitted by PEMEX for      the Quesqui 1DEL outpost.  SENER      granted the AE-0053-3M-Mezcalapa-03 to Pemex 100% through Ronda 0 on 27      August 2014 and the (Campo Quesqui) evaluation block on 29 July 2019. The      entitlement has been modified three times, the latest was 29 July 2019      when the Quesqui evaluation block was granted. The evaluation plan also      included the designation of the 87.41 sq km AE-0053-3M-Mezcalapa-03 (Campo      Quesqui) evaluation block that was modified on 27 August 2019 creating the      AE-0053 Quesqui Oriente block that covers an approximate area of 60.98 sq      km carved and the AE-00045 Quesqui Occidente block carved out of the      AE-0045-5M-Agua Dulce-04 entitlement block that covers an approximate area      of 26.01 sq km.   On      27 August 2019, the AE-0053 and AE-0045 entitlements expired and was      superseded by the AE-0143-Comalcalco entitlement on 28 August 2019 that      covers the entire area of the Campo Quesqui evaluation area. The Quesqui      development block will still be linked to the old entitlements and this      area will be carved out of the new AE-0143-Comalcalco entitlement.   On 25 July 2019, the CNH approved the evaluation-development plan submitted by PEMEX for the Quesqui 1EXP new-field wildcat (NFW) Jurassic gas and condensate discovery in the AE-0053-3M-Mezcalapa-03 entitlement block. The Quesqui 1EXP is a significant discovery with PEMEX estimating original gas in place (OGIP) of 3.4 Tcfg and original condensate in place of 923 MMbc. The evaluation plan will prove up the volumes with five appraisal wells planned. The evaluation plan also included the designation of the 87.41 sq km AE-0053-3M-Mezcalapa-03 (Campo Quesqui) evaluation block that also includes area carved out of the AE-0045-5M-Agua Dulce-04 entitlement block. The primary purpose of the evaluation plan is to fast-track development of the new discovery through the drilling of five outpost wells and six long term production tests including the discovery well and construction of several pipelines to flow the test production to market. This will allow PEMEX to appraise and produce the wells at the same time prior to full commerciality declaration.   PEMEX reported that the Quesqui 1EXP discovered gas and condensate in the Upper Jurassic Kimmeridgian dolomites. The condensate has a gravity of 44Â° API. The reservoir tested 16.67 MMcfg/d and 4,478 bc/d through a 32/64â choke from 6,256 m to 7,047 m. The reservoir pressure is reported to be 12,578 psi and the temperature 153Â° C. PEMEX reported that it estimated the reserves for the Quesqui 1EXP discovery after drilling and testing of the discovery well and its geophysical evaluation. PEMEX estimates original gas in place (OGIP) of 3.4 Tcfg and original condensate in place of 923 MMbc.   PEMEX completed as an oil and gas discovery the Quesqui 1EXP new-field wildcat (NFW) in the AE-0053-3M-Mezcalapa-03 entitlement block during mid-May 2019. The well reportedly tested approximately 800 bo/d and large volumes of natural gas from the HPHT reservoir. The NFW was spudded on 22 July 2018 and reached a final total depth (TD) of 7,047 m in May 2019. The well had a proposed total depth (PTD) of 7,526 m and the primary targets were the Cretaceous and Jurassic formations. The NFW will attempt to extend the successful deeper Jurassic plays in the area like Bricol, Chinchorro, Palangre, Pareto, and the most recent discovery Chocol in March 2017. The drilling cost estimate was reported to be USD 24.81 million at an exchange rate of 1USD = 18.5 MXN and the completion cost is USD 5.24 million. The NFW has prospective resources of 63 MMboe. The prospect is located in the north-western area of the block, approximately 7.8 km northwest of the A-0168-M-Campo Jujo-Tecominoacan. The operator was granted a permit to drill the well by the CNH on 22 June 2018.
Quesqui 1EXP (Pemex 100%) in NW part of AE-0053-2M-Mezcalapa-03 block, onshore in Tabasco, compl o&g,  testing ab. 800 bo/d + gas from an HPHT reservoir. Targets Cret. (npw) + Jurassic (dpw). Initial tests produced 4,478 bc/d of 43.8Â° API and 16.67 MMcfg/d from the Late Jurassic Kimmeridgiano Fm.  Discovery looking to be the largest onshore Sureste discovery since 1987, est. 3P reserves 500 MMboe (up from erstwhile 40 MMboe).