Archive · H1 2026

Reservoir Transparency Index H1 2026

167 countries rated · 27 not rated (N/A) · Global average: 33.9

Rank▲	Country↕	Grade↕	Avail.↕	Access.↕	Coverage↕	History↕	Freq.↕	Method.↕	Language↕	API↕
1	Norway	A89	90	82	100	85	80	82	85	✓
2	Netherlands	A88	90	95	85	85	95	80	80	✓
3	Australia	A87	92	85	85	82	88	80	100	✓
4	Taiwan	A87	92	88	90	78	82	80	80	✓
5	Israel	A86	88	75	95	100	85	65	60	✓
6	Cyprus	A86	88	84	92	90	78	65	78	✓
7	South Korea	A-83	92	75	88	75	95	78	40	✓
8	Hong Kong	A-82	72	84	100	68	70	62	98	✓
9	United States	A-81	90	92	58	95	90	85	100	✓
10	Brazil	A-80	88	78	80	85	90	72	35	✓
11	Czechia	B+78	90	55	85	65	100	60	80	—
12	Tunisia	B+78	88	75	90	65	90	50	30	✓
13	Lesotho	B+78	80	45	100	70	80	48	95	—
14	Japan	B+78	85	62	88	72	90	75	30	✓
15	Spain	B+78	92	45	88	88	75	72	42	—
16	Denmark	B+77	80	60	85	80	75	80	60	✓
17	Finland	B+76	81	80	65	90	87	68	70	✓
18	Panama	B+76	78	55	85	85	78	58	72	—
19	Switzerland	B74	55	72	80	88	90	65	75	✓
20	Canada	B74	75	70	58	100	85	75	95	✓
21	South Africa	B73	80	40	90	80	60	55	85	—
22	Colombia	B73	85	78	70	65	90	68	18	✓
23	Portugal	B73	80	45	88	85	60	65	40	—
24	Morocco	B72	78	52	85	70	88	54	30	✓
25	Thailand	B71	78	60	72	80	80	55	55	✓
26	India	B-69	80	30	88	62	75	55	60	—
27	Mauritius	B-69	55	32	100	95	38	48	85	—
28	Austria	B-68	62	45	80	85	75	55	55	—
29	Uruguay	B-68	72	32	88	85	75	50	10	—
30	Chile	B-68	75	45	75	88	78	52	18	✓
31	Greece	B-68	78	70	55	88	75	40	70	✓
32	Turkey	B-66	82	35	70	85	85	45	22	—
33	United Kingdom	B-65	50	50	67	100	50	70	100	✓
34	Poland	C+64	62	50	70	80	80	58	22	✓
35	Paraguay	C+64	62	28	100	60	68	30	22	—
36	France	C+64	72	58	60	65	65	52	80	✓
37	Ireland	C+63	52	50	70	72	70	45	95	✓
38	Namibia	C+63	72	22	92	35	62	28	90	—
39	Zimbabwe	C+62	72	28	85	30	70	38	90	—
40	Botswana	C+61	58	22	100	32	55	28	88	—
41	Iceland	C+60	60	20	82	65	70	45	45	—
42	New Zealand	C+60	72	42	40	90	62	68	100	—
43	El Salvador	C60	62	28	88	60	75	18	10	—
44	Iran	C57	58	18	95	42	55	32	25	—
45	Bulgaria	C57	82	45	45	50	85	55	30	✓
46	Jamaica	C57	52	18	100	22	48	28	82	—
47	Germany	C57	64	30	65	55	75	50	32	—
48	Slovakia	C56	52	30	72	65	72	35	30	✓
49	Luxembourg	C55	42	52	65	48	72	38	68	✓
50	Sri Lanka	C-54	65	22	60	35	75	50	90	—
51	Hungary	C-53	20	30	90	50	60	40	50	—
52	Peru	C-53	62	28	72	45	55	38	10	—
53	Lithuania	C-51	42	62	45	55	72	52	44	✓
54	Zambia	C-51	38	20	90	22	42	30	82	—
55	Dominican Republic	D+49	55	22	85	20	42	28	10	—
56	Estonia	D+49	52	48	30	68	55	60	78	✓
57	Jordan	D+49	38	22	95	28	20	18	55	—
58	Argentina	D+49	60	38	58	35	52	48	12	—
59	Romania	D+49	55	28	60	42	60	45	22	—
60	Ukraine	D+49	52	22	70	20	75	25	45	—
61	Ecuador	D+48	55	28	70	30	55	22	15	—
62	Rwanda	D+48	52	30	50	55	45	38	75	—
63	Costa Rica	D+48	55	28	67	22	72	20	15	—
64	Slovenia	D+45	52	28	25	75	80	48	45	—
65	Ghana	D+45	28	8	88	18	20	38	95	—
66	Mozambique	D+45	42	15	91	12	30	20	22	—
67	Senegal	D44	38	12	94	15	30	18	8	—
68	Italy	D44	62	38	30	52	60	48	18	✓
69	Lebanon	D42	30	8	90	20	18	15	55	—
70	Vietnam	D41	52	18	40	40	62	38	45	—
71	Croatia	D41	38	42	32	52	55	48	28	✓
72	Pakistan	D-40	50	20	42	15	70	35	50	—
73	Armenia	D-36	42	18	35	38	48	25	52	—
74	Kazakhstan	D-36	52	32	6	55	60	48	42	—
75	Cuba	D-35	38	10	60	18	42	15	12	—
76	Kenya	F35	38	8	48	22	18	30	90	—
77	Guatemala	F34	42	14	35	48	55	18	10	—
78	Mali	F34	32	12	55	30	42	18	8	—
79	Malaysia	F34	58	22	13	35	45	48	62	—
80	Burkina Faso	F34	32	12	60	18	35	15	25	—
81	Trinidad and Tobago	F33	28	18	50	15	30	20	72	—
82	Sweden	F33	35	38	22	25	35	40	82	—
83	Uganda	F33	38	18	25	45	30	35	75	—
84	Andorra	F32	22	18	50	15	32	25	55	—
85	Belgium	F31	28	32	18	38	55	35	40	✓
86	Nigeria	F29	18	8	43	22	15	32	90	—
87	Laos	F27	38	22	15	20	42	28	58	—
88	Mauritania	F27	15	8	50	25	18	12	30	—
89	Seychelles	F27	18	8	45	15	15	18	70	—
90	Belize	F26	18	8	50	10	10	5	65	—
91	Eswatini	F26	38	12	25	8	32	10	75	—
92	Indonesia	F25	38	18	20	15	42	28	5	—
93	Malawi	F25	28	8	30	22	18	10	72	—
94	Mexico	F24	25	20	10	55	8	55	22	—
95	Saudi Arabia	F24	28	20	15	32	18	38	42	—
96	China	F24	42	18	1	38	35	45	15	—
97	Oman	F23	25	12	25	15	18	22	72	—
98	Benin	F22	12	5	50	10	8	10	10	—
99	Gabon	F21	12	6	50	8	7	8	15	—
100	Suriname	F21	20	8	35	15	12	18	22	—
101	Saint Lucia	F20	18	8	25	12	18	15	70	—
102	Bolivia	F20	28	18	8	35	22	30	10	—
103	Russia	F20	35	12	10	22	30	20	8	—
104	Antigua and Barbuda	F19	20	8	25	10	12	8	60	—
105	Togo	F19	6	4	50	5	3	4	12	—
106	Honduras	F17	32	18	8	22	18	12	8	—
107	Fiji	F16	18	8	8	12	20	12	82	—
108	Saint Vincent and the Grenadines	F16	14	8	18	8	12	10	65	—
109	North Macedonia	F15	22	10	5	30	18	15	20	—
110	Iraq	F14	22	8	12	15	12	8	20	—
111	Palau	F13	10	5	15	5	5	10	70	—
112	Grenada	F13	8	5	18	3	5	5	70	—
113	Uzbekistan	F12	14	8	10	16	10	10	28	—
114	Cameroon	F11	12	5	8	5	8	10	62	—
115	Nicaragua	F10	18	10	8	5	5	10	5	—
116	Belarus	F8	8	5	3	10	12	14	28	—
117	Tanzania	F8	8	5	5	12	5	10	30	—
118	Algeria	F6	0	0	10	0	0	0	62	—
119	Tajikistan	F6	8	3	5	5	5	7	18	—
120	Haiti	F6	8	5	0	8	5	8	25	—
121	Singapore	F5	0	0	0	0	0	0	95	—
122	Republic of the Congo	F5	5	3	5	5	2	3	10	—
123	Bhutan	F4	0	0	0	0	0	0	80	—
124	Samoa	F3	0	0	0	0	0	0	68	—
125	Dominica	F3	0	0	0	0	0	0	65	—
126	Central African Republic	F3	3	2	4	3	1	2	8	—
127	Nepal	F3	0	0	0	0	0	0	62	—
128	Georgia	F3	0	0	0	0	0	0	55	—
129	Papua New Guinea	F3	0	0	0	0	0	0	55	—
130	Kosovo	F3	0	0	0	0	0	0	55	—
131	Sierra Leone	F3	0	0	0	0	0	0	52	—
132	Latvia	F2	0	0	0	0	0	0	48	—
133	Serbia	F2	0	0	0	0	0	0	48	—
134	Albania	F2	0	0	0	0	0	0	45	—
135	Bangladesh	F2	0	0	0	0	0	0	45	✓
136	Libya	F2	2	1	2	2	1	1	15	—
137	Moldova	F2	0	0	0	0	0	0	45	—
138	Turkmenistan	F2	3	2	2	3	0	2	3	—
139	Egypt	F2	0	0	0	0	0	0	42	—
140	Guyana	F2	0	0	0	0	0	0	42	—
141	South Sudan	F2	0	0	0	0	0	0	42	—
142	Brunei	F2	0	0	0	0	0	0	40	—
143	Liberia	F2	0	0	0	0	0	0	38	—
144	Burundi	F2	0	0	0	0	0	0	35	—
145	Madagascar	F2	0	0	0	0	0	0	35	—
146	Niger	F2	0	0	0	0	0	0	35	—
147	Ethiopia	F2	0	0	0	0	0	0	30	—
148	Cambodia	F2	0	0	0	0	0	0	30	—
149	North Korea	F1	1	1	1	1	1	1	5	—
150	Bosnia and Herzegovina	F1	0	0	0	0	0	0	20	—
151	Myanmar	F1	0	0	0	0	0	0	18	—
152	Mongolia	F1	0	0	0	0	0	0	18	—
153	Azerbaijan	F1	0	0	0	0	0	0	15	—
154	Côte d'Ivoire	F1	0	0	0	0	0	0	12	—
155	Equatorial Guinea	F1	0	0	0	0	0	0	12	—
156	Kyrgyzstan	F1	0	0	0	0	0	0	12	—
157	Montenegro	F1	0	0	0	0	0	0	12	—
158	Afghanistan	F1	0	0	0	0	0	0	10	—
159	Angola	F1	0	0	0	0	0	0	10	—
160	Syria	F1	0	0	0	0	0	0	10	—
161	Venezuela	F1	0	0	0	0	0	0	10	—
162	DR Congo	F0	0	0	0	0	0	0	8	—
163	Guinea	F0	0	0	0	0	0	0	8	—
164	Chad	F0	0	0	0	0	0	0	8	—
165	Eritrea	F0	0	0	0	0	0	0	5	—
166	Sudan	F0	0	0	0	0	0	0	5	—
167	Somalia	F0	0	0	0	0	0	0	5	—
168	Yemen	F0	0	0	0	0	0	0	5	—