| Name | Oeiras |
| Province ID | 752 |
| Continent | South America |
| Super region | Amazonia |
| Region | Brazil |
| Area | Piauí |
| Development | 9 |
| Base Tax | 3 |
| Base Production | 3 |
| Base Manpower | 3 |
| Trade node | Siberia |
| Culture | Ge |
| Culture Group | Je |
Here are the IDs of provinces that in on the same region as Oeiras:
| Province | Province ID |
|---|---|
| Alagoas | 2921 |
| Alcantara | 2927 |
| Amapa | 747 |
| Araraquara | 2897 |
| Araxas | 2892 |
| Arrial dos Couros | 2908 |
| Bahia | 756 |
| Barcelos | 2933 |
| Barra | 2885 |
| Belem | 748 |
| Borborema | 2922 |
| Caceres | 2903 |
| Campinas | 2896 |
| Campo Largo | 2918 |
| Castro | 2895 |
| Ceara | 751 |
| Cerejeiras | 2901 |
| Conceicao | 2909 |
| Corumba | 2881 |
| Coxim | 2920 |
| Crato | 750 |
| Cuiaba | 2888 |
| Curitiba | 769 |
| Diamantina | 759 |
| Diamantino | 2904 |
| Espirito Santo | 761 |
| Goias | 758 |
| Grajau | 2926 |
| Guapore | 2900 |
| Guayra | 768 |
| Ilheus | 757 |
| Inhambupe | 2914 |
| Ipora | 2906 |
| Jeremoabo | 2913 |
| Luziana | 2919 |
| Manaus | 2934 |
| Marajó | 2890 |
| Maranhao | 749 |
| Minas Gerais | 765 |
| Muturu | 2935 |
| Natividad | 2911 |
| Oeiras | 752 |
| Ofaie | 2893 |
| Oiapoque | 2938 |
| Pambu | 2915 |
| Para | 2929 |
| Paraiba | 754 |
| Paratinga | 2917 |
| Parnagua | 2925 |
| Parnaiba | 2886 |
| Pastos Bons | 2923 |
| Pernambuco | 755 |
| Pontal | 2910 |
| Porto Seguro | 760 |
| Povos das Missoes | 2884 |
| Rio Branco | 2889 |
| Rio Contas | 2916 |
| Rio Das Mortes | 2905 |
| Rio de Janeiro | 763 |
| Rio Grande | 753 |
| Rio Grande do Sul | 2857 |
| Santa Catarina | 2887 |
| Santa Tecla | 2879 |
| Santarem | 2930 |
| Santo Amaro | 764 |
| Santo Antonio da Manga | 2891 |
| Sao Joao del Rei | 2894 |
| Sao Tome | 762 |
| Sao Vicente | 766 |
| Sergipe | 2912 |
| Serro | 2898 |
| Timon | 2924 |
| Tucurui | 2928 |
| Vila Bela | 2902 |
| Vila Boa | 2907 |
| Vila Rica | 2899 |