Investor Presentaiton

-1100 660000 670000 50 ETAME MARIN FIELD 680000 W VAALCO Gabon: Etame Offshore License Production from multiple reservoirs, wells and platforms, with upside from identified prospects VAALCO Sinopec (Addax) PetroEnergy 58.8% WI(1) 31.4% WI 2.3% WI Operator Asset Overview > Operator of Etame licences in Gabon with 63.6% (1) participating interest > Located in prolific South Gabon basin in shallow water (~85m) > 46,300 gross acres; 27,200 net acres > Significant production potential: Produced ~135 gross mmbbl to date Production grown from 4,853 NRI bbl/d in FY'20 to ~8,600 NRI bbl/d Q3'23 > 1P reserves (NRI) at YE2022 of 10.2 mmbbl > Numerous undrilled opportunities at moderate drilling depths (1,800m to 2,900m TVD) into known reservoirs 9590000 -1400 1300 -1200 -1400 1300 9590000 1700 Ebouri EBOUR 1900 1600 WEtame -1800 -1500- -1700. Etame MFB -1600- -1900 -1500 -1700 -1800 -1600 -2000 -2100- FSO SSW Etame ° ETAMEH V Block SE Etame 2 2000 9580000 9570000 -2400 -2500 -2600 660000 -2100 -2200 BNM-1H SEENT ETBNM-NSTTchibala 1900 -2100 -1200 -1400- -1500 9580000 -1800 -2000 9570000 ETESM STchibala AVOUMAH EAVO TZ NE Avouma Avouma -22001 -2300 -2300 -2400 -2500 -2400 (-2300 Top Gamba Structure (TVDSS) m 680000 5000 10000m 3500 670000 Producing Fields Prospects (1) Gabon working interest is net of Tullow carried interest, participating interest would be 63.6% and Net Revenue Interest (NRI) includes deductions for the Gabonese national government and Tullow carried interest (51.2%) Pipeline 2018 Etame PSC Slide 9

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