Hydrocarbon Reserves as
of January 1, 2011
March 30, 2011
2
Forward-Looking Statements
This presentation contains forward-looking statements. We may also make written or oral forward-looking statements in
our periodic reports to the Comisión Nacional Bancaria y de Valores (Mexican National Banking and Securities
Commission, or CNBV) and the U.S. Securities and Exchange Commission (SEC), in our annual report, in our offering
circulars and prospectuses, in press releases, in other written materials, and in oral statements made by our officers,
directors or employees to third parties.
Words such as we “believe”, “expect”, “anticipate”, and similar phrases express forward-looking statements and our
perspective about events in the future and financial performance. We may include forward-looking statements that
address, among other things, our:
• drilling and other exploration activities;
• import and export activities;
• projected and targeted capital expenditures and other costs;
• Commitments, revenues, and liquidity, etc.
Actual results could differ materially from those projected in such forward-looking statements as a result of various
factors that may be beyond our control. These factors include, but are not limited to:
• changes in international crude oil and natural gas prices;
• effects on us from competition;
• limitations on our access to sources of financing on competitive terms;
• significant economic or political developments in Mexico;
• developments affecting the energy sector; and
• changes in our regulatory environment.
Accordingly, you should not place undue reliance on these forward-looking statements. In any event, these statements
speak only as of their dates, and we undertake no obligation to update or revise any of them, whether as a result of new
information, future events or otherwise.
These risks and uncertainties are more fully detailed in PEMEX’s most recent Form 20-F filing with the SEC
(www.sec.gov) and the PEMEX prospectus filed with the CNBV and available through the Mexican Stock Exchange
(www.bmv.com.mx). These factors could cause actual results to differ materially from those contained in any forward-
looking statement.
3
Cautionary Note
As established in Article 10 of the Regulatory Law to Article 27 of the Constitution of the United Mexican States
Concerning Petroleum Affairs, (i) PEMEX’s reports evaluating hydrocarbon reserves should be approved by the National
Hydrocarbons Commission (NHC); and (ii) the Secretary of Energy will register and disclose Mexico’s hydrocarbon
reserves based on information provided by the NHC. These procedures are currently under development.
As of January 1, 2010, the SEC changed its rules to permit oil and gas companies, in their filings with the SEC, to disclose
not only proved reserves, but also probable reserves and possible reserves. However, we do not necessarily mean that
the probable or possible reserves described herein meet the recoverability thresholds established by the SEC in its new
definitions. Investors are urged to consider closely the disclosure in our Form 20-F and our annual report to the Mexican
Banking and Securities Commission, available at www.pemex.com.
Cumulative or annual variations are computed as compared to the same period of the previous year; unless it is
otherwise specified.
4
Content
Reserves Estimation as of January 1, 2011
Main Discoveries
Questions and Answers
5
Exploitation
Exploration
Development
and Distribution
• Increase the recovery factor in brownfields through the implementation of
secondary and enhanced recovery projects.
• Accelerate the development of new reserves.
• Implement the best technologies available to increase the success rate and
productivity of development wells.
• Build the facilities needed to guarantee the quality of crude oil production
delivered.
• Continue with the integral maintenance strategy of facilities.
Main Strategies in Pemex-Exploration and Production
• Accelerate the exploration activities in the deepwaters of the Gulf of México
by increasing seismic acquisition and drilling of exploratory wells.
• Improve the success rate of exploratory wells.
• Accelerate the delineation of recent discovered fields.
68%
32%
13.8 9.3
4.5
Proved (1P) Developed Undeveloped
Proved Reserves as of January 1, 2011
Billion barrels of crude oil equivalent (MMMboe)
Crude Oil: 74% 76% 70%
Dry Natural Gas: 17% 16% 20%
Condensates and Plant Liquids 9% 8% 10%
Developed
Undeveloped
Note: Numbers may not total due to rounding.
100% = 13.8
6
3P Reserves as of January 1, 2011
Billion barrels of crude oil equivalent (MMMboe)
Note: Numbers may not total due to rounding.
13.8
15.0
28.8
14.3
43.1
Proved (1P) Probable 2P Possible 3P
Crude oil: 74% 71% 73% 68% 71%
Dry natural gas: 17% 20% 18% 23% 20%
Condensates and plant liquids: 9% 9% 9% 9% 9%
7
52%34%
14%
Crude Oil Reserves Composition
Crude Oil Reserves as of January 1, 2011
Billion barrels (MMMb)
Note: Numbers may not total due to rounding.
60%29%
11%
Proved Reserves
100% = 10.2
Heavy:
Light:
Extra-light:
54%33%
13%
Reserves 2P
100% = 20.9
Reserves 3P
100% = 30.6
6.2
2.9
1.1
11.4
6.8
2.7
15.9
10.5
4.2
8
71%
29%
Natural Gas Reserves Composition
Natural Gas Reserves as of January 1, 2011
Trillion cubic feet (MMMMcf)
Note: Numbers may not total due to rounding.
71%
29%62%
38%
Proved reserves
100% = 17.3
Associated:
Non-associated:
Reserves 2P
100% = 38.2
Reserves 3P
100% = 61.3
10.8
6.5
27.2
11.0
43.3
18.0
9
43% 31% 30%
57% 69% 70%
1P 2P 3P
69% 53% 49%
31% 47% 51%
1P 2P 3P
Geographical Distribution of Reserves
Note: Numbers may not total due to rounding.
Burgos
Tampico – Misantla
Veracruz
Sureste
Golfo de México Profundo
Plataforma de Yucatán
Basins
Sabinas
Crude Oil Reserves(MMMb)
Reserves as of January 1,2011:
100% =
Type of Reserve:
Natural Gas Reserves(MMMMcf)
Offshore
Onshore
10.2 20.9 30.6 17.3 38.2 61.3
10
Reserves-Production Ratio*
*As of January 1 of each year.
Note: Numbers may not total due to rounding
1P
2P
3P
Year
Production
(MMboe)
Reserves-Production Ratio (Years)
Reserves-Production Ratio
Reserves
Production =
31.1
20.8
10.0
1,384 2011
31.3
20.5
10.2
1,378 2010
30.0
19.9
9.9
1,451 2009
11
Reserves Evolution
Note: Numbers may not total due to rounding.
Since 2002 Pemex Exploration and Production has utilized the SEC proved reserves definition
25.1 23.5 21.9 20.1 18.9 17.6 16.5 15.5 14.7 14.3 14.0 13.8
21.2 21.3 20.817.0 16.0 15.8 15.8 15.3 15.1 14.5 14.2 15.0
12.0 11.3 10.313.0 13.1 13.4 14.2 14.6 14.6 14.7 14.8 14.3
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
56.2 53.0
50.0 48.0
58.2
46.9 46.4
Reserves as of January 1 of Each Year
Billion barrels of crude oil equivalent (MMMboe)
Possible
Probable
Proved
1P Reserves:
2P Reserves:
3P Reserves:
13.8
28.8
43.1
43.1 45.4 44.5 43.6
21.9
42.7
53.0
20.1
37.0
50.0
18.9
34.9
48.0
17.6
33.5
46.9
16.5
32.3
46.4
15.5
30.8
45.4
14.7
29.9
44.5
14.3
28.8
43.6
14.0
28.2
43.1
43.1
12
Crude Oil and Natural Gas Reserves Evolution
10.4 10.4 10.2
10.4 10.0 10.7
10.1 10.1 9.7
2009 2010 2011
Note: Numbers may not total due to rounding.
Possible
Probable
Proved
Reserves as of January 1 of Each Year
17.6 16.8 17.3
20.1 20.7 20.9
22.6 23.7 23.0
2009 2010 2011
Crude Oil Reserves
(MMMb)
17.6
37.8
60.4
16.8
37.5
61.2
61.2 30.6
17.3
38.2
61.3
61.3 30.9 60.4 30.5
10.4
20.8
30.9
10.4
20.4
30.5
Natural Gas Reserves
(MMMMcf)
10.2
20.9
30.6
1P Reserves:
2P Reserves:
3P Reserves:
13
Reserves Evolution 2010 - 2011
Note: Numbers may not total due to rounding.
As of January 1 of Each Year
Million barrels of crude oil equivalent (MMboe)
1P Reserves
13,992 231 957 -1,384
13,796
2P Reserves
28,229 543
1,422 -1,384
28,809
2010 Discoveries Developments, revisions and delineations
Production 2011
3P Reserves
43,075 1,438 -55 -1,384
43,074
14
* Includes: discoveries, delineations, developments and revisions.
22.7 26.4
41.0
50.3
71.877.1
85.8
2005 2006 2007 2008 2009 2010 2011
Replacement rate of 1P* (Percent)
Evolution of Proved Reserves Replacement Rate
As of January 1 of Each Year
15
16
Content
Reserves Estimation as of January 1, 2011
Main Discoveries
Questions and Answers
Discoveries Evolution
Note: Numbers may not total due to rounding.
182.9 182.8363.8 388.9
230.8
229.1492.6
548.6 490.3
312.1
554.1
377.8
569.7894.8
894.8
2007 2008 2009 2010 2011
As of January 1 of Each Year
Million barrels of crude oil equivalent (MMboe)
Possible
Probable
Proved
1,773.9
1,437.8
966.1 1,053.2
1,482.1
182.9
412.1
966.1
182.8
675.4
1,053.2
363.8
912.4
1,482.1
388.9
879.2
1,773.9
230.8
543.0
1,437.8
1P Reserves:
2P Reserves:
3P Reserves:
17
96%
2%1% 0%
1%
95%
3%2% 0%
0%
Discoveries in 2010
Note: Numbers may not total due to rounding.
Discoveries as of January 1, 2011
Million barrels of crude oil equivalent (MMboe)
93%
4%2% 1% 0%
Proved reserves
100% = 231
2P reserves
100% = 543
3P reserves
100% = 1,438
Southeast: 215 519 1,380
Veracruz: 10 14 27
Burgos: 4 8 16
Basin
Sabinas: 1 2 4
Tampico-Misantla: 0 0 11
18
19
Recent Relevant Discoveries
In the last three years important offshore fields have been discovered mainly in the
Southeast basin:
Ayatsil-Tekel-Pit-Kayab Complex: this heavy
crude oil complex recently discovered represents
additions to its total reserves of 1,623 MMboe and
544 MMboe of proved reserves. The complex is
located in the north part of the Ku-Maloob-Zaap
Asset and represents the most important discovery
of heavy crude oil in the last years.
Tsimin-Xux complex: this gas-condensate complex
represents additions to its total reserves of 1,947
MMboe and 467 MMboe of proved reserves. The
complex represents the most important discovery
of non-associated gas in the last years. It is worth
mentioning that the Kinbé exploratory well is
currently in completion and PEMEX has already
identified higher oil column. Therefore, the
complex reserves will be even higher this year.
Tson-1
Pohp-1
Pit-1Baksha-1
Tunich-101
Nab-1
Numan-1
Kayab-1
Yaxiltun-1
Kanche-1
Bok-1
Lem-1
Bacab 301
Ku
Zaap
Maloob
Ayatsil-1
DL 3
Ayatsil-1DL
Pit-1DL
100
500
Tekel 1
Chapabil-1A
Panil1
5.6 km
UTSIL-1
5.4 km
Pozos Productor
Pozo invadido
Pozo en terminación
Pozo productor en otro horizonte
5.5 km
Tekel
Ayatsil
Pit
Kayab
Kinbe-1
Xux-1
Tsimin-1DL
Tsimin-1
May
20
Content
Reserves Estimation as of January 1, 2011
Main Discoveries
Questions and Answers